Finding the Fourth Proportional to 3,198,273.12, 4,414,861.26 and 2,165,275.80
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Solution
The fourth proportional to 3,198,273.12, 4,414,861.26 and 2,165,275.80 is: 2,988,923.05
Step by Step Solution
- Step 1: Write the proportion equation
3,198,273.12 : 4,414,861.26 = 2,165,275.80 : x - Step 2: Convert to fraction form
3,198,273.12/4,414,861.26 = 2,165,275.80/x - Step 3: Cross multiply
3,198,273.12x = 4,414,861.26 × 2,165,275.80 - Step 4: Simplify right side
3,198,273.12x = 9,559,392,246,635.51 - Step 5: Solve for x
x = 9,559,392,246,635.51/3,198,273.12 - Step 6: Final answer
x = 2,988,923.05
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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.