Finding the Fourth Proportional to 22,915,914.62, 31,707,236.81 and 19,981,849.97
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Solution
The fourth proportional to 22,915,914.62, 31,707,236.81 and 19,981,849.97 is: 27,647,565.43
Step by Step Solution
- Step 1: Write the proportion equation
22,915,914.62 : 31,707,236.81 = 19,981,849.97 : x - Step 2: Convert to fraction form
22,915,914.62/31,707,236.81 = 19,981,849.97/x - Step 3: Cross multiply
22,915,914.62x = 31,707,236.81 × 19,981,849.97 - Step 4: Simplify right side
22,915,914.62x = 633,569,248,900,681.38 - Step 5: Solve for x
x = 633,569,248,900,681.38/22,915,914.62 - Step 6: Final answer
x = 27,647,565.43
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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.