Finding the Fourth Proportional to 22,521,391.40, 31,079,287.22 and 12,598,144.99
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Solution
The fourth proportional to 22,521,391.40, 31,079,287.22 and 12,598,144.99 is: 17,385,309.79
Step by Step Solution
- Step 1: Write the proportion equation
22,521,391.40 : 31,079,287.22 = 12,598,144.99 : x - Step 2: Convert to fraction form
22,521,391.40/31,079,287.22 = 12,598,144.99/x - Step 3: Cross multiply
22,521,391.40x = 31,079,287.22 × 12,598,144.99 - Step 4: Simplify right side
22,521,391.40x = 391,541,366,442,725.12 - Step 5: Solve for x
x = 391,541,366,442,725.12/22,521,391.40 - Step 6: Final answer
x = 17,385,309.79
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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.