To convert a distance from inches to light years, we need to go through several conversions. Here's the step-by-step process:
- Convert inches to meters: Since 1 inch is equal to 0.0254 meters, we can convert the given distance as follows:
294 billion × 10^18.9 inches = 294 × 10^9 × 10^18.9 × 0.0254 meters.
Simplifying the expression:
= 294 × 10^9+18.9 × 0.0254 meters.
= 294 × 10^27.9 × 0.0254 meters.
- Convert meters to kilometers: Since 1 meter is equal to 0.001 kilometers, we can convert the distance as follows:
294 × 10^27.9 × 0.0254 meters = 294 × 10^27.9 × 0.0254 × 0.001 kilometers.
Simplifying the expression:
= 294 × 10^27.9 × 0.0254 × 0.001 kilometers.
= 7.47716 × 10^26 × kilometers.
- Convert kilometers to light years: Since 1 light year is approximately equal to 9.461 × 10^12 kilometers, we can convert the distance as follows:
7.47716 × 10^26 kilometers = 7.47716 × 10^26 / 9.461 × 10^12 light years.
Simplifying the expression:
= 7.9143 × 10^13 light years.
Therefore, 294 billion × 10^18.9 inches is approximately equal to 7.9143 × 10^13 light years.