Finding the Fourth Proportional to 6,787,375.20, 10,181,062.80 and 6,472,447.20
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Solution
The fourth proportional to 6,787,375.20, 10,181,062.80 and 6,472,447.20 is: 9,708,670.80
Step by Step Solution
- Step 1: Write the proportion equation
6,787,375.20 : 10,181,062.80 = 6,472,447.20 : x - Step 2: Convert to fraction form
6,787,375.20/10,181,062.80 = 6,472,447.20/x - Step 3: Cross multiply
6,787,375.20x = 10,181,062.80 × 6,472,447.20 - Step 4: Simplify right side
6,787,375.20x = 65,896,391,412,884.16 - Step 5: Solve for x
x = 65,896,391,412,884.16/6,787,375.20 - Step 6: Final answer
x = 9,708,670.80
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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.