Home / 111,667,631.79-167,214,469.54-68,405,677.18

Finding the Fourth Proportional to 111,667,631.79, 167,214,469.54 and 68,405,677.18

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Solution

The fourth proportional to 111,667,631.79, 167,214,469.54 and 68,405,677.18 is: 102,432,717.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,667,631.79 : 167,214,469.54 = 68,405,677.18 : x
  2. Step 2: Convert to fraction form
    111,667,631.79/167,214,469.54 = 68,405,677.18/x
  3. Step 3: Cross multiply
    111,667,631.79x = 167,214,469.54 × 68,405,677.18
  4. Step 4: Simplify right side
    111,667,631.79x = 11,438,419,023,850,536
  5. Step 5: Solve for x
    x = 11,438,419,023,850,536/111,667,631.79
  6. Step 6: Final answer
    x = 102,432,717.89

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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.