Finding the Fourth Proportional to 15,981,013.80, 23,971,520.70 and 5,343,445.80
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Solution
The fourth proportional to 15,981,013.80, 23,971,520.70 and 5,343,445.80 is: 8,015,168.70
Step by Step Solution
- Step 1: Write the proportion equation
15,981,013.80 : 23,971,520.70 = 5,343,445.80 : x - Step 2: Convert to fraction form
15,981,013.80/23,971,520.70 = 5,343,445.80/x - Step 3: Cross multiply
15,981,013.80x = 23,971,520.70 × 5,343,445.80 - Step 4: Simplify right side
15,981,013.80x = 128,090,521,604,028.05 - Step 5: Solve for x
x = 128,090,521,604,028.05/15,981,013.80 - Step 6: Final answer
x = 8,015,168.70
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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.