Finding the Fourth Proportional to 77,937,117.12, 107,553,430.80 and 43,132,207.68
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Solution
The fourth proportional to 77,937,117.12, 107,553,430.80 and 43,132,207.68 is: 59,522,562.36
Step by Step Solution
- Step 1: Write the proportion equation
77,937,117.12 : 107,553,430.80 = 43,132,207.68 : x - Step 2: Convert to fraction form
77,937,117.12/107,553,430.80 = 43,132,207.68/x - Step 3: Cross multiply
77,937,117.12x = 107,553,430.80 × 43,132,207.68 - Step 4: Simplify right side
77,937,117.12x = 4,639,016,913,962,108 - Step 5: Solve for x
x = 4,639,016,913,962,108/77,937,117.12 - Step 6: Final answer
x = 59,522,562.36
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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.