Finding the Fourth Proportional to 3,912,043.10, 5,398,615.80 and 2,193,163.97
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Solution
The fourth proportional to 3,912,043.10, 5,398,615.80 and 2,193,163.97 is: 3,026,564.21
Step by Step Solution
- Step 1: Write the proportion equation
3,912,043.10 : 5,398,615.80 = 2,193,163.97 : x - Step 2: Convert to fraction form
3,912,043.10/5,398,615.80 = 2,193,163.97/x - Step 3: Cross multiply
3,912,043.10x = 5,398,615.80 × 2,193,163.97 - Step 4: Simplify right side
3,912,043.10x = 11,840,049,633,439.65 - Step 5: Solve for x
x = 11,840,049,633,439.65/3,912,043.10 - Step 6: Final answer
x = 3,026,564.21
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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.