Finding the Fourth Proportional to 4,342,665.12, 5,987,367.36 and 3,103,753.92
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Solution
The fourth proportional to 4,342,665.12, 5,987,367.36 and 3,103,753.92 is: 4,279,241.99
Step by Step Solution
- Step 1: Write the proportion equation
4,342,665.12 : 5,987,367.36 = 3,103,753.92 : x - Step 2: Convert to fraction form
4,342,665.12/5,987,367.36 = 3,103,753.92/x - Step 3: Cross multiply
4,342,665.12x = 5,987,367.36 × 3,103,753.92 - Step 4: Simplify right side
4,342,665.12x = 18,583,314,914,080.05 - Step 5: Solve for x
x = 18,583,314,914,080.05/4,342,665.12 - Step 6: Final answer
x = 4,279,241.99
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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.