Home / 71,883,778.60-107,715,947.73-42,680,109.61

Finding the Fourth Proportional to 71,883,778.60, 107,715,947.73 and 42,680,109.61

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Solution

The fourth proportional to 71,883,778.60, 107,715,947.73 and 42,680,109.61 is: 63,955,019.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,883,778.60 : 107,715,947.73 = 42,680,109.61 : x
  2. Step 2: Convert to fraction form
    71,883,778.60/107,715,947.73 = 42,680,109.61/x
  3. Step 3: Cross multiply
    71,883,778.60x = 107,715,947.73 × 42,680,109.61
  4. Step 4: Simplify right side
    71,883,778.60x = 4,597,328,455,861,431
  5. Step 5: Solve for x
    x = 4,597,328,455,861,431/71,883,778.60
  6. Step 6: Final answer
    x = 63,955,019.41

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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.