Finding the Fourth Proportional to 3,759,257.31, 5,187,778.93 and 2,040,378.18
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Solution
The fourth proportional to 3,759,257.31, 5,187,778.93 and 2,040,378.18 is: 2,815,723.97
Step by Step Solution
- Step 1: Write the proportion equation
3,759,257.31 : 5,187,778.93 = 2,040,378.18 : x - Step 2: Convert to fraction form
3,759,257.31/5,187,778.93 = 2,040,378.18/x - Step 3: Cross multiply
3,759,257.31x = 5,187,778.93 × 2,040,378.18 - Step 4: Simplify right side
3,759,257.31x = 10,585,030,921,233.86 - Step 5: Solve for x
x = 10,585,030,921,233.86/3,759,257.31 - Step 6: Final answer
x = 2,815,723.97
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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.