Finding the Fourth Proportional to 12,691,497.08, 17,514,265.90 and 6,890,278.68
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Solution
The fourth proportional to 12,691,497.08, 17,514,265.90 and 6,890,278.68 is: 9,508,584.54
Step by Step Solution
- Step 1: Write the proportion equation
12,691,497.08 : 17,514,265.90 = 6,890,278.68 : x - Step 2: Convert to fraction form
12,691,497.08/17,514,265.90 = 6,890,278.68/x - Step 3: Cross multiply
12,691,497.08x = 17,514,265.90 × 6,890,278.68 - Step 4: Simplify right side
12,691,497.08x = 120,678,172,926,621 - Step 5: Solve for x
x = 120,678,172,926,621/12,691,497.08 - Step 6: Final answer
x = 9,508,584.54
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1.5x scale
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.