Finding the Fourth Proportional to 99,861,248.20, 149,791,872.30 and 84,744,704.20
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Solution
The fourth proportional to 99,861,248.20, 149,791,872.30 and 84,744,704.20 is: 127,117,056.30
Step by Step Solution
- Step 1: Write the proportion equation
99,861,248.20 : 149,791,872.30 = 84,744,704.20 : x - Step 2: Convert to fraction form
99,861,248.20/149,791,872.30 = 84,744,704.20/x - Step 3: Cross multiply
99,861,248.20x = 149,791,872.30 × 84,744,704.20 - Step 4: Simplify right side
99,861,248.20x = 12,694,067,909,627,676 - Step 5: Solve for x
x = 12,694,067,909,627,676/99,861,248.20 - Step 6: Final answer
x = 127,117,056.30
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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.