Finding the Fourth Proportional to 3,151,836.56, 4,720,964.34 and 2,135,381.96
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Solution
The fourth proportional to 3,151,836.56, 4,720,964.34 and 2,135,381.96 is: 3,198,472.35
Step by Step Solution
- Step 1: Write the proportion equation
3,151,836.56 : 4,720,964.34 = 2,135,381.96 : x - Step 2: Convert to fraction form
3,151,836.56/4,720,964.34 = 2,135,381.96/x - Step 3: Cross multiply
3,151,836.56x = 4,720,964.34 × 2,135,381.96 - Step 4: Simplify right side
3,151,836.56x = 10,081,062,085,439.31 - Step 5: Solve for x
x = 10,081,062,085,439.31/3,151,836.56 - Step 6: Final answer
x = 3,198,472.35
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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.