Finding the Fourth Proportional to 15,203,697.14, 20,981,440.84 and 8,677,195.70
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Solution
The fourth proportional to 15,203,697.14, 20,981,440.84 and 8,677,195.70 is: 11,974,723.42
Step by Step Solution
- Step 1: Write the proportion equation
15,203,697.14 : 20,981,440.84 = 8,677,195.70 : x - Step 2: Convert to fraction form
15,203,697.14/20,981,440.84 = 8,677,195.70/x - Step 3: Cross multiply
15,203,697.14x = 20,981,440.84 × 8,677,195.70 - Step 4: Simplify right side
15,203,697.14x = 182,060,068,236,652.38 - Step 5: Solve for x
x = 182,060,068,236,652.38/15,203,697.14 - Step 6: Final answer
x = 11,974,723.42
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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.