Finding the Fourth Proportional to 3,981,229.80, 5,971,844.70 and 2,183,418.60
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Solution
The fourth proportional to 3,981,229.80, 5,971,844.70 and 2,183,418.60 is: 3,275,127.90
Step by Step Solution
- Step 1: Write the proportion equation
3,981,229.80 : 5,971,844.70 = 2,183,418.60 : x - Step 2: Convert to fraction form
3,981,229.80/5,971,844.70 = 2,183,418.60/x - Step 3: Cross multiply
3,981,229.80x = 5,971,844.70 × 2,183,418.60 - Step 4: Simplify right side
3,981,229.80x = 13,039,036,794,291.42 - Step 5: Solve for x
x = 13,039,036,794,291.42/3,981,229.80 - Step 6: Final answer
x = 3,275,127.90
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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.