Finding the Fourth Proportional to 3,936,523.20, 5,432,376.96 and 2,218,197.12
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Solution
The fourth proportional to 3,936,523.20, 5,432,376.96 and 2,218,197.12 is: 3,061,097.91
Step by Step Solution
- Step 1: Write the proportion equation
3,936,523.20 : 5,432,376.96 = 2,218,197.12 : x - Step 2: Convert to fraction form
3,936,523.20/5,432,376.96 = 2,218,197.12/x - Step 3: Cross multiply
3,936,523.20x = 5,432,376.96 × 2,218,197.12 - Step 4: Simplify right side
3,936,523.20x = 12,050,082,927,426.36 - Step 5: Solve for x
x = 12,050,082,927,426.36/3,936,523.20 - Step 6: Final answer
x = 3,061,097.91
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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.