Finding the Fourth Proportional to 102,981,561.44, 141,979,324.07 and 74,314,351.82
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Solution
The fourth proportional to 102,981,561.44, 141,979,324.07 and 74,314,351.82 is: 102,456,219.27
Step by Step Solution
- Step 1: Write the proportion equation
102,981,561.44 : 141,979,324.07 = 74,314,351.82 : x - Step 2: Convert to fraction form
102,981,561.44/141,979,324.07 = 74,314,351.82/x - Step 3: Cross multiply
102,981,561.44x = 141,979,324.07 × 74,314,351.82 - Step 4: Simplify right side
102,981,561.44x = 10,551,101,440,103,772 - Step 5: Solve for x
x = 10,551,101,440,103,772/102,981,561.44 - Step 6: Final answer
x = 102,456,219.27
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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.