Finding the Fourth Proportional to 5,161,168.12, 7,122,865.76 and 2,838,469.92
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Solution
The fourth proportional to 5,161,168.12, 7,122,865.76 and 2,838,469.92 is: 3,917,338.04
Step by Step Solution
- Step 1: Write the proportion equation
5,161,168.12 : 7,122,865.76 = 2,838,469.92 : x - Step 2: Convert to fraction form
5,161,168.12/7,122,865.76 = 2,838,469.92/x - Step 3: Cross multiply
5,161,168.12x = 7,122,865.76 × 2,838,469.92 - Step 4: Simplify right side
5,161,168.12x = 20,218,040,203,957.94 - Step 5: Solve for x
x = 20,218,040,203,957.94/5,161,168.12 - Step 6: Final answer
x = 3,917,338.04
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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.