Finding the Fourth Proportional to 6,288,979.92, 8,678,821.68 and 3,572,874.96
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Solution
The fourth proportional to 6,288,979.92, 8,678,821.68 and 3,572,874.96 is: 4,930,584.14
Step by Step Solution
- Step 1: Write the proportion equation
6,288,979.92 : 8,678,821.68 = 3,572,874.96 : x - Step 2: Convert to fraction form
6,288,979.92/8,678,821.68 = 3,572,874.96/x - Step 3: Cross multiply
6,288,979.92x = 8,678,821.68 × 3,572,874.96 - Step 4: Simplify right side
6,288,979.92x = 31,008,344,662,777.13 - Step 5: Solve for x
x = 31,008,344,662,777.13/6,288,979.92 - Step 6: Final answer
x = 4,930,584.14
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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.