Finding the Fourth Proportional to 87,895,376.80, 131,577,644.40 and 77,278,544.80
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Solution
The fourth proportional to 87,895,376.80, 131,577,644.40 and 77,278,544.80 is: 115,684,456.43
Step by Step Solution
- Step 1: Write the proportion equation
87,895,376.80 : 131,577,644.40 = 77,278,544.80 : x - Step 2: Convert to fraction form
87,895,376.80/131,577,644.40 = 77,278,544.80/x - Step 3: Cross multiply
87,895,376.80x = 131,577,644.40 × 77,278,544.80 - Step 4: Simplify right side
87,895,376.80x = 10,168,128,887,443,870 - Step 5: Solve for x
x = 10,168,128,887,443,870/87,895,376.80 - Step 6: Final answer
x = 115,684,456.43
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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.