title: Calculate position of a point by give position and distance?
body: <p>I have to move from a point A( lat, lng ) to point B( lat, lng1 ).
  The latitude of the both points is a constant.
  I know the distance between them ( in meters ), so i need the formula to find the longitude of point B.</p>
  
  <ul>
  <li>How to find the longitude of point B ?</li>
  </ul>