Finding the Fourth Proportional to 81,508,624.97, 112,533,534.83 and 50,601,591.05
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Solution
The fourth proportional to 81,508,624.97, 112,533,534.83 and 50,601,591.05 is: 69,862,249.68
Step by Step Solution
- Step 1: Write the proportion equation
81,508,624.97 : 112,533,534.83 = 50,601,591.05 : x - Step 2: Convert to fraction form
81,508,624.97/112,533,534.83 = 50,601,591.05/x - Step 3: Cross multiply
81,508,624.97x = 112,533,534.83 × 50,601,591.05 - Step 4: Simplify right side
81,508,624.97x = 5,694,375,908,442,428 - Step 5: Solve for x
x = 5,694,375,908,442,428/81,508,624.97 - Step 6: Final answer
x = 69,862,249.68
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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.