Finding the Fourth Proportional to 83,608,213.54, 125,428,470.94 and 31,788,787.13
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Solution
The fourth proportional to 83,608,213.54, 125,428,470.94 and 31,788,787.13 is: 47,689,321.35
Step by Step Solution
- Step 1: Write the proportion equation
83,608,213.54 : 125,428,470.94 = 31,788,787.13 : x - Step 2: Convert to fraction form
83,608,213.54/125,428,470.94 = 31,788,787.13/x - Step 3: Cross multiply
83,608,213.54x = 125,428,470.94 × 31,788,787.13 - Step 4: Simplify right side
83,608,213.54x = 3,987,218,962,753,051 - Step 5: Solve for x
x = 3,987,218,962,753,051/83,608,213.54 - Step 6: Final answer
x = 47,689,321.35
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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.