Finding the Fourth Proportional to 6,472,028.80, 9,711,542.40 and 2,878,350.40
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Solution
The fourth proportional to 6,472,028.80, 9,711,542.40 and 2,878,350.40 is: 4,319,081.82
Step by Step Solution
- Step 1: Write the proportion equation
6,472,028.80 : 9,711,542.40 = 2,878,350.40 : x - Step 2: Convert to fraction form
6,472,028.80/9,711,542.40 = 2,878,350.40/x - Step 3: Cross multiply
6,472,028.80x = 9,711,542.40 × 2,878,350.40 - Step 4: Simplify right side
6,472,028.80x = 27,953,221,951,656.96 - Step 5: Solve for x
x = 27,953,221,951,656.96/6,472,028.80 - Step 6: Final answer
x = 4,319,081.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.