Home / 112,724,469.92-155,467,540.55-79,344,449.30

Finding the Fourth Proportional to 112,724,469.92, 155,467,540.55 and 79,344,449.30

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Solution

The fourth proportional to 112,724,469.92, 155,467,540.55 and 79,344,449.30 is: 109,430,422.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,724,469.92 : 155,467,540.55 = 79,344,449.30 : x
  2. Step 2: Convert to fraction form
    112,724,469.92/155,467,540.55 = 79,344,449.30/x
  3. Step 3: Cross multiply
    112,724,469.92x = 155,467,540.55 × 79,344,449.30
  4. Step 4: Simplify right side
    112,724,469.92x = 12,335,486,389,552,200
  5. Step 5: Solve for x
    x = 12,335,486,389,552,200/112,724,469.92
  6. Step 6: Final answer
    x = 109,430,422.68

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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.