Finding the Fourth Proportional to 4,031,217.76, 5,563,080.20 and 2,220,381.76
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Solution
The fourth proportional to 4,031,217.76, 5,563,080.20 and 2,220,381.76 is: 3,064,126.66
Step by Step Solution
- Step 1: Write the proportion equation
4,031,217.76 : 5,563,080.20 = 2,220,381.76 : x - Step 2: Convert to fraction form
4,031,217.76/5,563,080.20 = 2,220,381.76/x - Step 3: Cross multiply
4,031,217.76x = 5,563,080.20 × 2,220,381.76 - Step 4: Simplify right side
4,031,217.76x = 12,352,161,805,497.15 - Step 5: Solve for x
x = 12,352,161,805,497.15/4,031,217.76 - Step 6: Final answer
x = 3,064,126.66
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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.