Finding the Fourth Proportional to 77,937,115.62, 107,553,428.73 and 43,132,206.18
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Solution
The fourth proportional to 77,937,115.62, 107,553,428.73 and 43,132,206.18 is: 59,522,560.29
Step by Step Solution
- Step 1: Write the proportion equation
77,937,115.62 : 107,553,428.73 = 43,132,206.18 : x - Step 2: Convert to fraction form
77,937,115.62/107,553,428.73 = 43,132,206.18/x - Step 3: Cross multiply
77,937,115.62x = 107,553,428.73 × 43,132,206.18 - Step 4: Simplify right side
77,937,115.62x = 4,639,016,663,348,296 - Step 5: Solve for x
x = 4,639,016,663,348,296/77,937,115.62 - Step 6: Final answer
x = 59,522,560.29
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.