Finding the Fourth Proportional to 7,138,909.50, 10,704,340.05 and 2,345,311.68
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Solution
The fourth proportional to 7,138,909.50, 10,704,340.05 and 2,345,311.68 is: 3,516,645.47
Step by Step Solution
- Step 1: Write the proportion equation
7,138,909.50 : 10,704,340.05 = 2,345,311.68 : x - Step 2: Convert to fraction form
7,138,909.50/10,704,340.05 = 2,345,311.68/x - Step 3: Cross multiply
7,138,909.50x = 10,704,340.05 × 2,345,311.68 - Step 4: Simplify right side
7,138,909.50x = 25,105,013,745,956.79 - Step 5: Solve for x
x = 25,105,013,745,956.79/7,138,909.50 - Step 6: Final answer
x = 3,516,645.47
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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.