Finding the Fourth Proportional to 8,278,820.10, 12,418,230.15 and 2,214,487.80
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Solution
The fourth proportional to 8,278,820.10, 12,418,230.15 and 2,214,487.80 is: 3,321,731.70
Step by Step Solution
- Step 1: Write the proportion equation
8,278,820.10 : 12,418,230.15 = 2,214,487.80 : x - Step 2: Convert to fraction form
8,278,820.10/12,418,230.15 = 2,214,487.80/x - Step 3: Cross multiply
8,278,820.10x = 12,418,230.15 × 2,214,487.80 - Step 4: Simplify right side
8,278,820.10x = 27,500,019,164,767.17 - Step 5: Solve for x
x = 27,500,019,164,767.17/8,278,820.10 - Step 6: Final answer
x = 3,321,731.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.