the average distance from earth to Mars is 2.25 x 10^8 km and the distance from earth to Neptune is 4.3514x10^9 km how much farther is Neptune from earth than mars

To find the difference in distance between Neptune and Mars, we subtract the distance from Earth to Mars from the distance from Earth to Neptune.

4.3514x10^9 km - 2.25x10^8 km = 4.1264x10^9 km

Therefore, Neptune is approximately 4.1264x10^9 km farther from Earth than Mars.