Finding the Fourth Proportional to 3,874,626.50, 5,347,240.11 and 2,155,750.61
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Solution
The fourth proportional to 3,874,626.50, 5,347,240.11 and 2,155,750.61 is: 2,975,078.02
Step by Step Solution
- Step 1: Write the proportion equation
3,874,626.50 : 5,347,240.11 = 2,155,750.61 : x - Step 2: Convert to fraction form
3,874,626.50/5,347,240.11 = 2,155,750.61/x - Step 3: Cross multiply
3,874,626.50x = 5,347,240.11 × 2,155,750.61 - Step 4: Simplify right side
3,874,626.50x = 11,527,316,102,212.77 - Step 5: Solve for x
x = 11,527,316,102,212.77/3,874,626.50 - Step 6: Final answer
x = 2,975,078.02
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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.