Finding the Fourth Proportional to 4,178,445.50, 5,764,132.62 and 2,728,989.38
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Solution
The fourth proportional to 4,178,445.50, 5,764,132.62 and 2,728,989.38 is: 3,764,619.33
Step by Step Solution
- Step 1: Write the proportion equation
4,178,445.50 : 5,764,132.62 = 2,728,989.38 : x - Step 2: Convert to fraction form
4,178,445.50/5,764,132.62 = 2,728,989.38/x - Step 3: Cross multiply
4,178,445.50x = 5,764,132.62 × 2,728,989.38 - Step 4: Simplify right side
4,178,445.50x = 15,730,256,676,070.91 - Step 5: Solve for x
x = 15,730,256,676,070.91/4,178,445.50 - Step 6: Final answer
x = 3,764,619.33
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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.