Finding the Fourth Proportional to 3,438,880.20, 4,744,182.42 and 2,147,478.84
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Solution
The fourth proportional to 3,438,880.20, 4,744,182.42 and 2,147,478.84 is: 2,962,601.42
Step by Step Solution
- Step 1: Write the proportion equation
3,438,880.20 : 4,744,182.42 = 2,147,478.84 : x - Step 2: Convert to fraction form
3,438,880.20/4,744,182.42 = 2,147,478.84/x - Step 3: Cross multiply
3,438,880.20x = 4,744,182.42 × 2,147,478.84 - Step 4: Simplify right side
3,438,880.20x = 10,188,031,360,049.99 - Step 5: Solve for x
x = 10,188,031,360,049.99/3,438,880.20 - Step 6: Final answer
x = 2,962,601.42
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1.5x scale
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.