Finding the Fourth Proportional to 3,738,920.40, 5,153,665.68 and 2,921,704.08
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Solution
The fourth proportional to 3,738,920.40, 5,153,665.68 and 2,921,704.08 is: 4,027,228.30
Step by Step Solution
- Step 1: Write the proportion equation
3,738,920.40 : 5,153,665.68 = 2,921,704.08 : x - Step 2: Convert to fraction form
3,738,920.40/5,153,665.68 = 2,921,704.08/x - Step 3: Cross multiply
3,738,920.40x = 5,153,665.68 × 2,921,704.08 - Step 4: Simplify right side
3,738,920.40x = 15,057,486,044,211.97 - Step 5: Solve for x
x = 15,057,486,044,211.97/3,738,920.40 - Step 6: Final answer
x = 4,027,228.30
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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.