Home / 78,741,221.92-118,101,320.96-23,408,019.12

Finding the Fourth Proportional to 78,741,221.92, 118,101,320.96 and 23,408,019.12

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Solution

The fourth proportional to 78,741,221.92, 118,101,320.96 and 23,408,019.12 is: 35,108,903.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,741,221.92 : 118,101,320.96 = 23,408,019.12 : x
  2. Step 2: Convert to fraction form
    78,741,221.92/118,101,320.96 = 23,408,019.12/x
  3. Step 3: Cross multiply
    78,741,221.92x = 118,101,320.96 × 23,408,019.12
  4. Step 4: Simplify right side
    78,741,221.92x = 2,764,517,979,128,936.50
  5. Step 5: Solve for x
    x = 2,764,517,979,128,936.50/78,741,221.92
  6. Step 6: Final answer
    x = 35,108,903.72

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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.