Finding the Fourth Proportional to 5,112,197.20, 7,658,964.60 and 4,160,414.80
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Solution
The fourth proportional to 5,112,197.20, 7,658,964.60 and 4,160,414.80 is: 6,233,028.27
Step by Step Solution
- Step 1: Write the proportion equation
5,112,197.20 : 7,658,964.60 = 4,160,414.80 : x - Step 2: Convert to fraction form
5,112,197.20/7,658,964.60 = 4,160,414.80/x - Step 3: Cross multiply
5,112,197.20x = 7,658,964.60 × 4,160,414.80 - Step 4: Simplify right side
5,112,197.20x = 31,864,469,674,516.08 - Step 5: Solve for x
x = 31,864,469,674,516.08/5,112,197.20 - Step 6: Final answer
x = 6,233,028.27
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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.