Finding the Fourth Proportional to 121,101,251.70, 181,651,877.55 and 99,577,891.20
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Solution
The fourth proportional to 121,101,251.70, 181,651,877.55 and 99,577,891.20 is: 149,366,836.80
Step by Step Solution
- Step 1: Write the proportion equation
121,101,251.70 : 181,651,877.55 = 99,577,891.20 : x - Step 2: Convert to fraction form
121,101,251.70/181,651,877.55 = 99,577,891.20/x - Step 3: Cross multiply
121,101,251.70x = 181,651,877.55 × 99,577,891.20 - Step 4: Simplify right side
121,101,251.70x = 18,088,510,898,949,624 - Step 5: Solve for x
x = 18,088,510,898,949,624/121,101,251.70 - Step 6: Final answer
x = 149,366,836.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.