Home / 121,217,671.38-167,280,380.11-65,463,086.42

Finding the Fourth Proportional to 121,217,671.38, 167,280,380.11 and 65,463,086.42

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Solution

The fourth proportional to 121,217,671.38, 167,280,380.11 and 65,463,086.42 is: 90,339,055.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,217,671.38 : 167,280,380.11 = 65,463,086.42 : x
  2. Step 2: Convert to fraction form
    121,217,671.38/167,280,380.11 = 65,463,086.42/x
  3. Step 3: Cross multiply
    121,217,671.38x = 167,280,380.11 × 65,463,086.42
  4. Step 4: Simplify right side
    121,217,671.38x = 10,950,689,980,325,060
  5. Step 5: Solve for x
    x = 10,950,689,980,325,060/121,217,671.38
  6. Step 6: Final answer
    x = 90,339,055.81

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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.