Finding the Fourth Proportional to 79,921,708.20, 119,882,566.85 and 19,337,434.20
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Solution
The fourth proportional to 79,921,708.20, 119,882,566.85 and 19,337,434.20 is: 29,006,152.40
Step by Step Solution
- Step 1: Write the proportion equation
79,921,708.20 : 119,882,566.85 = 19,337,434.20 : x - Step 2: Convert to fraction form
79,921,708.20/119,882,566.85 = 19,337,434.20/x - Step 3: Cross multiply
79,921,708.20x = 119,882,566.85 × 19,337,434.20 - Step 4: Simplify right side
79,921,708.20x = 2,318,221,248,092,289 - Step 5: Solve for x
x = 2,318,221,248,092,289/79,921,708.20 - Step 6: Final answer
x = 29,006,152.40
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1.5x scale
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.