Finding the Fourth Proportional to 6,387,620.90, 9,581,431.35 and 3,193,240.10
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Solution
The fourth proportional to 6,387,620.90, 9,581,431.35 and 3,193,240.10 is: 4,789,860.15
Step by Step Solution
- Step 1: Write the proportion equation
6,387,620.90 : 9,581,431.35 = 3,193,240.10 : x - Step 2: Convert to fraction form
6,387,620.90/9,581,431.35 = 3,193,240.10/x - Step 3: Cross multiply
6,387,620.90x = 9,581,431.35 × 3,193,240.10 - Step 4: Simplify right side
6,387,620.90x = 30,595,810,802,217.13 - Step 5: Solve for x
x = 30,595,810,802,217.13/6,387,620.90 - Step 6: Final answer
x = 4,789,860.15
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Similar ratio
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1.5x scale
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.