Form Alignment in bootstrap 3

I have the following HTML in bootstrap 3 that gives the following display:

The HTML it as follows.

In one row i have only one field, while on others I have 3. Is it possible with bootstrap to make all rows position "first" label on the same position? In this case, "Project Name", "Location", and "Project Value" will be aligned same position.

Thanks

<div class="container">
    <div class="row" id="mainForm">
         <form class="form-horizontal">
                <div class="row">
                    <div class="form-group col-xs-12 col-sm-6">
                        <label for="txtProjectName" class="control-label col-sm-4 col-xs-3">Project Name</label>
                        <div class="col-sm-8 col-xs-9">
                            <input type="text" class="form-control" id="txtProjectName" placeholder="Name of Project">
                        </div>
                    </div>
                </div>
                <div class="row">
                    <div class="form-group col-xs-12 col-sm-6">
                        <label for="txtLocation" class="control-label col-sm-4 col-xs-3">Location</label>
                        <div class="col-sm-8 col-xs-9">
                            <input type="text" class="form-control" id="txtLocation" placeholder="Location">
                        </div>
                    </div>
                </div>
                <div class="row">
                    <div class="form-group col-xs-12 col-sm-4">
                        <label for="txtProjectValue" class="control-label col-sm-4 col-xs-3">Project Value</label>
                        <div class="col-sm-8 col-xs-9">
                            <input type="text" class="form-control" id="txtprojectValueUsd" placeholder="Project Value (US $)">
                        </div>
                    </div>
                    <div class="form-group col-xs-12 col-sm-4">
                        <label for="txtCCCValue" class="control-label col-sm-4 col-xs-3">CCC Value</label>
                        <div class="col-sm-8 col-xs-9">
                            <input type="text" class="form-control" id="txtCCCValue" placeholder="CCC Value (US $)">
                        </div>
                    </div>
                    <div class="form-group col-xs-12 col-sm-4">
                        <label for="txtProjectValueLocal" class="control-label col-sm-4 col-xs-3">Project Value Local</label>
                        <div class="col-sm-8 col-xs-9">
                            <input type="text" class="form-control" id="txtProjectValueLocal" placeholder="Project Value Local Currency">
                        </div>
                    </div>
                </div>

                <div class="form-group">
                    <div class="col-xs-offset-2 col-xs-10">
                        <button type="submit" class="btn btn-primary">Login</button>
                    </div>
                </div>
            </form>
    </div>
    <div class="row top-buffer">
    </div>
</div>