Finding the Fourth Proportional to 123,864,171.57, 170,935,366.68 and 68,112,689.13
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Solution
The fourth proportional to 123,864,171.57, 170,935,366.68 and 68,112,689.13 is: 93,997,056.17
Step by Step Solution
- Step 1: Write the proportion equation
123,864,171.57 : 170,935,366.68 = 68,112,689.13 : x - Step 2: Convert to fraction form
123,864,171.57/170,935,366.68 = 68,112,689.13/x - Step 3: Cross multiply
123,864,171.57x = 170,935,366.68 × 68,112,689.13 - Step 4: Simplify right side
123,864,171.57x = 11,642,867,491,997,400 - Step 5: Solve for x
x = 11,642,867,491,997,400/123,864,171.57 - Step 6: Final answer
x = 93,997,056.17
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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.