Finding the Fourth Proportional to 5,715,543.91, 7,887,475.98 and 3,137,245.87
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Solution
The fourth proportional to 5,715,543.91, 7,887,475.98 and 3,137,245.87 is: 4,329,413.23
Step by Step Solution
- Step 1: Write the proportion equation
5,715,543.91 : 7,887,475.98 = 3,137,245.87 : x - Step 2: Convert to fraction form
5,715,543.91/7,887,475.98 = 3,137,245.87/x - Step 3: Cross multiply
5,715,543.91x = 7,887,475.98 × 3,137,245.87 - Step 4: Simplify right side
5,715,543.91x = 24,744,951,442,979.20 - Step 5: Solve for x
x = 24,744,951,442,979.20/5,715,543.91 - Step 6: Final answer
x = 4,329,413.23
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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.