Home / 70,978,512.30-106,467,768.45-45,469,344.30

Finding the Fourth Proportional to 70,978,512.30, 106,467,768.45 and 45,469,344.30

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Solution

The fourth proportional to 70,978,512.30, 106,467,768.45 and 45,469,344.30 is: 68,204,016.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,978,512.30 : 106,467,768.45 = 45,469,344.30 : x
  2. Step 2: Convert to fraction form
    70,978,512.30/106,467,768.45 = 45,469,344.30/x
  3. Step 3: Cross multiply
    70,978,512.30x = 106,467,768.45 × 45,469,344.30
  4. Step 4: Simplify right side
    70,978,512.30x = 4,841,019,620,505,727
  5. Step 5: Solve for x
    x = 4,841,019,620,505,727/70,978,512.30
  6. Step 6: Final answer
    x = 68,204,016.45

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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.