Finding the Fourth Proportional to 99,647,414.20, 149,471,121.30 and 86,015,952.55
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Solution
The fourth proportional to 99,647,414.20, 149,471,121.30 and 86,015,952.55 is: 129,023,928.83
Step by Step Solution
- Step 1: Write the proportion equation
99,647,414.20 : 149,471,121.30 = 86,015,952.55 : x - Step 2: Convert to fraction form
99,647,414.20/149,471,121.30 = 86,015,952.55/x - Step 3: Cross multiply
99,647,414.20x = 149,471,121.30 × 86,015,952.55 - Step 4: Simplify right side
99,647,414.20x = 12,856,900,877,336,094 - Step 5: Solve for x
x = 12,856,900,877,336,094/99,647,414.20 - Step 6: Final answer
x = 129,023,928.83
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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.