Finding the Fourth Proportional to 7,614,175.20, 11,398,823.28 and 6,669,391.20
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Solution
The fourth proportional to 7,614,175.20, 11,398,823.28 and 6,669,391.20 is: 9,984,431.63
Step by Step Solution
- Step 1: Write the proportion equation
7,614,175.20 : 11,398,823.28 = 6,669,391.20 : x - Step 2: Convert to fraction form
7,614,175.20/11,398,823.28 = 6,669,391.20/x - Step 3: Cross multiply
7,614,175.20x = 11,398,823.28 × 6,669,391.20 - Step 4: Simplify right side
7,614,175.20x = 76,023,211,673,987.14 - Step 5: Solve for x
x = 76,023,211,673,987.14/7,614,175.20 - Step 6: Final answer
x = 9,984,431.63
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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.