Finding the Fourth Proportional to 157,469,553.60, 236,204,330.40 and 42,465,721.20
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Solution
The fourth proportional to 157,469,553.60, 236,204,330.40 and 42,465,721.20 is: 63,698,581.80
Step by Step Solution
- Step 1: Write the proportion equation
157,469,553.60 : 236,204,330.40 = 42,465,721.20 : x - Step 2: Convert to fraction form
157,469,553.60/236,204,330.40 = 42,465,721.20/x - Step 3: Cross multiply
157,469,553.60x = 236,204,330.40 × 42,465,721.20 - Step 4: Simplify right side
157,469,553.60x = 10,030,587,240,999,086 - Step 5: Solve for x
x = 10,030,587,240,999,086/157,469,553.60 - Step 6: Final answer
x = 63,698,581.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.