Finding the Fourth Proportional to 136,951,846.38, 188,995,850.64 and 74,229,932.97
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Solution
The fourth proportional to 136,951,846.38, 188,995,850.64 and 74,229,932.97 is: 102,438,555.56
Step by Step Solution
- Step 1: Write the proportion equation
136,951,846.38 : 188,995,850.64 = 74,229,932.97 : x - Step 2: Convert to fraction form
136,951,846.38/188,995,850.64 = 74,229,932.97/x - Step 3: Cross multiply
136,951,846.38x = 188,995,850.64 × 74,229,932.97 - Step 4: Simplify right side
136,951,846.38x = 14,029,149,324,615,330 - Step 5: Solve for x
x = 14,029,149,324,615,330/136,951,846.38 - Step 6: Final answer
x = 102,438,555.56
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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.