Home / 203,486,999.70-305,230,499.55-126,002,901.90

Finding the Fourth Proportional to 203,486,999.70, 305,230,499.55 and 126,002,901.90

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Solution

The fourth proportional to 203,486,999.70, 305,230,499.55 and 126,002,901.90 is: 189,004,352.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,486,999.70 : 305,230,499.55 = 126,002,901.90 : x
  2. Step 2: Convert to fraction form
    203,486,999.70/305,230,499.55 = 126,002,901.90/x
  3. Step 3: Cross multiply
    203,486,999.70x = 305,230,499.55 × 126,002,901.90
  4. Step 4: Simplify right side
    203,486,999.70x = 38,459,928,691,686,648
  5. Step 5: Solve for x
    x = 38,459,928,691,686,648/203,486,999.70
  6. Step 6: Final answer
    x = 189,004,352.85

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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.