Finding the Fourth Proportional to 5,121,891.27, 7,068,124.58 and 2,798,732.75
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Solution
The fourth proportional to 5,121,891.27, 7,068,124.58 and 2,798,732.75 is: 3,862,204.55
Step by Step Solution
- Step 1: Write the proportion equation
5,121,891.27 : 7,068,124.58 = 2,798,732.75 : x - Step 2: Convert to fraction form
5,121,891.27/7,068,124.58 = 2,798,732.75/x - Step 3: Cross multiply
5,121,891.27x = 7,068,124.58 × 2,798,732.75 - Step 4: Simplify right side
5,121,891.27x = 19,781,791,753,799.47 - Step 5: Solve for x
x = 19,781,791,753,799.47/5,121,891.27 - Step 6: Final answer
x = 3,862,204.55
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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.