Finding the Fourth Proportional to 5,146,868.42, 7,720,662.28 and 2,114,387.18
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Solution
The fourth proportional to 5,146,868.42, 7,720,662.28 and 2,114,387.18 is: 3,171,728.52
Step by Step Solution
- Step 1: Write the proportion equation
5,146,868.42 : 7,720,662.28 = 2,114,387.18 : x - Step 2: Convert to fraction form
5,146,868.42/7,720,662.28 = 2,114,387.18/x - Step 3: Cross multiply
5,146,868.42x = 7,720,662.28 × 2,114,387.18 - Step 4: Simplify right side
5,146,868.42x = 16,324,469,345,941.57 - Step 5: Solve for x
x = 16,324,469,345,941.57/5,146,868.42 - Step 6: Final answer
x = 3,171,728.52
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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.