Finding the Fourth Proportional to 4,428,489.60, 6,642,734.40 and 2,916,835.20
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Solution
The fourth proportional to 4,428,489.60, 6,642,734.40 and 2,916,835.20 is: 4,375,252.80
Step by Step Solution
- Step 1: Write the proportion equation
4,428,489.60 : 6,642,734.40 = 2,916,835.20 : x - Step 2: Convert to fraction form
4,428,489.60/6,642,734.40 = 2,916,835.20/x - Step 3: Cross multiply
4,428,489.60x = 6,642,734.40 × 2,916,835.20 - Step 4: Simplify right side
4,428,489.60x = 19,375,761,522,170.88 - Step 5: Solve for x
x = 19,375,761,522,170.88/4,428,489.60 - Step 6: Final answer
x = 4,375,252.80
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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.