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Finding the Fourth Proportional to 65,017,751.20, 89,728,527.84 and 36,044,375.20

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Solution

The fourth proportional to 65,017,751.20, 89,728,527.84 and 36,044,375.20 is: 49,743,472.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,017,751.20 : 89,728,527.84 = 36,044,375.20 : x
  2. Step 2: Convert to fraction form
    65,017,751.20/89,728,527.84 = 36,044,375.20/x
  3. Step 3: Cross multiply
    65,017,751.20x = 89,728,527.84 × 36,044,375.20
  4. Step 4: Simplify right side
    65,017,751.20x = 3,234,208,723,608,606
  5. Step 5: Solve for x
    x = 3,234,208,723,608,606/65,017,751.20
  6. Step 6: Final answer
    x = 49,743,472.57

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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.