Finding the Fourth Proportional to 3,866,213.92, 5,335,227.66 and 2,147,444.68
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Solution
The fourth proportional to 3,866,213.92, 5,335,227.66 and 2,147,444.68 is: 2,963,391.70
Step by Step Solution
- Step 1: Write the proportion equation
3,866,213.92 : 5,335,227.66 = 2,147,444.68 : x - Step 2: Convert to fraction form
3,866,213.92/5,335,227.66 = 2,147,444.68/x - Step 3: Cross multiply
3,866,213.92x = 5,335,227.66 × 2,147,444.68 - Step 4: Simplify right side
3,866,213.92x = 11,457,106,255,055.85 - Step 5: Solve for x
x = 11,457,106,255,055.85/3,866,213.92 - Step 6: Final answer
x = 2,963,391.70
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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.