Finding the Fourth Proportional to 86,357,917.05, 129,405,062.81 and 51,273,943.92
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Solution
The fourth proportional to 86,357,917.05, 129,405,062.81 and 51,273,943.92 is: 76,832,653.68
Step by Step Solution
- Step 1: Write the proportion equation
86,357,917.05 : 129,405,062.81 = 51,273,943.92 : x - Step 2: Convert to fraction form
86,357,917.05/129,405,062.81 = 51,273,943.92/x - Step 3: Cross multiply
86,357,917.05x = 129,405,062.81 × 51,273,943.92 - Step 4: Simplify right side
86,357,917.05x = 6,635,107,933,227,648 - Step 5: Solve for x
x = 6,635,107,933,227,648/86,357,917.05 - Step 6: Final answer
x = 76,832,653.68
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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.