Finding the Fourth Proportional to 5,260,890.40, 7,885,432.97 and 3,442,753.47
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Solution
The fourth proportional to 5,260,890.40, 7,885,432.97 and 3,442,753.47 is: 5,160,267.49
Step by Step Solution
- Step 1: Write the proportion equation
5,260,890.40 : 7,885,432.97 = 3,442,753.47 : x - Step 2: Convert to fraction form
5,260,890.40/7,885,432.97 = 3,442,753.47/x - Step 3: Cross multiply
5,260,890.40x = 7,885,432.97 × 3,442,753.47 - Step 4: Simplify right side
5,260,890.40x = 27,147,601,719,919.91 - Step 5: Solve for x
x = 27,147,601,719,919.91/5,260,890.40 - Step 6: Final answer
x = 5,160,267.49
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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.