Finding the Fourth Proportional to 5,121,128.01, 7,067,074.17 and 2,797,970.61
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Solution
The fourth proportional to 5,121,128.01, 7,067,074.17 and 2,797,970.61 is: 3,861,154.38
Step by Step Solution
- Step 1: Write the proportion equation
5,121,128.01 : 7,067,074.17 = 2,797,970.61 : x - Step 2: Convert to fraction form
5,121,128.01/7,067,074.17 = 2,797,970.61/x - Step 3: Cross multiply
5,121,128.01x = 7,067,074.17 × 2,797,970.61 - Step 4: Simplify right side
5,121,128.01x = 19,773,465,826,350.14 - Step 5: Solve for x
x = 19,773,465,826,350.14/5,121,128.01 - Step 6: Final answer
x = 3,861,154.38
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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.