Finding the Fourth Proportional to 3,815,919.39, 5,266,170.44 and 2,162,387.13
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Solution
The fourth proportional to 3,815,919.39, 5,266,170.44 and 2,162,387.13 is: 2,984,208.52
Step by Step Solution
- Step 1: Write the proportion equation
3,815,919.39 : 5,266,170.44 = 2,162,387.13 : x - Step 2: Convert to fraction form
3,815,919.39/5,266,170.44 = 2,162,387.13/x - Step 3: Cross multiply
3,815,919.39x = 5,266,170.44 × 2,162,387.13 - Step 4: Simplify right side
3,815,919.39x = 11,387,499,161,391.31 - Step 5: Solve for x
x = 11,387,499,161,391.31/3,815,919.39 - Step 6: Final answer
x = 2,984,208.52
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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.