The average distance from Earth to Mars is 2.25×10^8 km, and the distance from Earth to Neptune is 4.3514×10^9 km. How much farther is Neptune from Earth than Mars? Express your answer in scientific notation. Do not round your answer.
To find the difference in distance between Neptune and Mars from Earth, we need to subtract the distance from Earth to Mars from the distance from Earth to Neptune.
The distance from Earth to Neptune is 4.3514×10^9 km.
The distance from Earth to Mars is 2.25×10^8 km.
Subtracting these values, we get:
4.3514×10^9 km - 2.25×10^8 km = 4.3514×10^9 km - 0.225×10^9 km = 4.1264×10^9 km.
Therefore, Neptune is 4.1264×10^9 km farther from Earth than Mars.