Fort Worth, Texas is 6.2 times larger than Richmond, Virginia.
Area: 1,011 km2 calculated
Population: 777,992 (2012)
Fort Worth is the 17th-largest city in the United States of America and the fifth-largest city in the state of Texas. Wikipedia
Area: 162 km2 calculated
Population: 210,309 (2012)
Richmond is the capital of the Commonwealth of Virginia, in the United States. It is the center of the Richmond Metropolitan Statistical Area and the Greater Richmond Region; since 1871 Richmond has been an independent city. Wikipedia