Finding the Fourth Proportional to 3,613,184.38, 4,986,285.99 and 1,981,656.70
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Solution
The fourth proportional to 3,613,184.38, 4,986,285.99 and 1,981,656.70 is: 2,734,736.45
Step by Step Solution
- Step 1: Write the proportion equation
3,613,184.38 : 4,986,285.99 = 1,981,656.70 : x - Step 2: Convert to fraction form
3,613,184.38/4,986,285.99 = 1,981,656.70/x - Step 3: Cross multiply
3,613,184.38x = 4,986,285.99 × 1,981,656.70 - Step 4: Simplify right side
3,613,184.38x = 9,881,107,040,199.63 - Step 5: Solve for x
x = 9,881,107,040,199.63/3,613,184.38 - Step 6: Final answer
x = 2,734,736.45
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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.