Finding the Fourth Proportional to 10,469,840.80, 15,704,761.20 and 3,738,935.20
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Solution
The fourth proportional to 10,469,840.80, 15,704,761.20 and 3,738,935.20 is: 5,608,402.80
Step by Step Solution
- Step 1: Write the proportion equation
10,469,840.80 : 15,704,761.20 = 3,738,935.20 : x - Step 2: Convert to fraction form
10,469,840.80/15,704,761.20 = 3,738,935.20/x - Step 3: Cross multiply
10,469,840.80x = 15,704,761.20 × 3,738,935.20 - Step 4: Simplify right side
10,469,840.80x = 58,719,084,458,274.24 - Step 5: Solve for x
x = 58,719,084,458,274.24/10,469,840.80 - Step 6: Final answer
x = 5,608,402.80
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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.