Home / 305,002,406.92-420,907,584.18-165,773,126.92

Finding the Fourth Proportional to 305,002,406.92, 420,907,584.18 and 165,773,126.92

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Solution

The fourth proportional to 305,002,406.92, 420,907,584.18 and 165,773,126.92 is: 228,769,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,002,406.92 : 420,907,584.18 = 165,773,126.92 : x
  2. Step 2: Convert to fraction form
    305,002,406.92/420,907,584.18 = 165,773,126.92/x
  3. Step 3: Cross multiply
    305,002,406.92x = 420,907,584.18 × 165,773,126.92
  4. Step 4: Simplify right side
    305,002,406.92x = 69,775,166,373,861,720
  5. Step 5: Solve for x
    x = 69,775,166,373,861,720/305,002,406.92
  6. Step 6: Final answer
    x = 228,769,231.95

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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.