Finding the Fourth Proportional to 100,668,594.97, 138,906,423.95 and 56,612,966.44
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Solution
The fourth proportional to 100,668,594.97, 138,906,423.95 and 56,612,966.44 is: 78,116,762.43
Step by Step Solution
- Step 1: Write the proportion equation
100,668,594.97 : 138,906,423.95 = 56,612,966.44 : x - Step 2: Convert to fraction form
100,668,594.97/138,906,423.95 = 56,612,966.44/x - Step 3: Cross multiply
100,668,594.97x = 138,906,423.95 × 56,612,966.44 - Step 4: Simplify right side
100,668,594.97x = 7,863,904,717,381,761 - Step 5: Solve for x
x = 7,863,904,717,381,761/100,668,594.97 - Step 6: Final answer
x = 78,116,762.43
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.