Finding the Fourth Proportional to 3,912,399.18, 5,392,872.42 and 3,084,122.13
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Solution
The fourth proportional to 3,912,399.18, 5,392,872.42 and 3,084,122.13 is: 4,251,170.81
Step by Step Solution
- Step 1: Write the proportion equation
3,912,399.18 : 5,392,872.42 = 3,084,122.13 : x - Step 2: Convert to fraction form
3,912,399.18/5,392,872.42 = 3,084,122.13/x - Step 3: Cross multiply
3,912,399.18x = 5,392,872.42 × 3,084,122.13 - Step 4: Simplify right side
3,912,399.18x = 16,632,277,174,788.65 - Step 5: Solve for x
x = 16,632,277,174,788.65/3,912,399.18 - Step 6: Final answer
x = 4,251,170.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.