Finding the Fourth Proportional to 21,330,924.13, 31,981,102.71 and 9,035,715.97
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Solution
The fourth proportional to 21,330,924.13, 31,981,102.71 and 9,035,715.97 is: 13,547,099.92
Step by Step Solution
- Step 1: Write the proportion equation
21,330,924.13 : 31,981,102.71 = 9,035,715.97 : x - Step 2: Convert to fraction form
21,330,924.13/31,981,102.71 = 9,035,715.97/x - Step 3: Cross multiply
21,330,924.13x = 31,981,102.71 × 9,035,715.97 - Step 4: Simplify right side
21,330,924.13x = 288,972,160,494,957.31 - Step 5: Solve for x
x = 288,972,160,494,957.31/21,330,924.13 - Step 6: Final answer
x = 13,547,099.92
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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.