Home / 218,589,910.20-327,674,913.30-126,378,991.80

Finding the Fourth Proportional to 218,589,910.20, 327,674,913.30 and 126,378,991.80

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Solution

The fourth proportional to 218,589,910.20, 327,674,913.30 and 126,378,991.80 is: 189,447,102.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,589,910.20 : 327,674,913.30 = 126,378,991.80 : x
  2. Step 2: Convert to fraction form
    218,589,910.20/327,674,913.30 = 126,378,991.80/x
  3. Step 3: Cross multiply
    218,589,910.20x = 327,674,913.30 × 126,378,991.80
  4. Step 4: Simplify right side
    218,589,910.20x = 41,411,225,181,006,408
  5. Step 5: Solve for x
    x = 41,411,225,181,006,408/218,589,910.20
  6. Step 6: Final answer
    x = 189,447,102.76

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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.