Home / 664,010,077.20-996,015,115.80-203,947,508.40

Finding the Fourth Proportional to 664,010,077.20, 996,015,115.80 and 203,947,508.40

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Solution

The fourth proportional to 664,010,077.20, 996,015,115.80 and 203,947,508.40 is: 305,921,262.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,010,077.20 : 996,015,115.80 = 203,947,508.40 : x
  2. Step 2: Convert to fraction form
    664,010,077.20/996,015,115.80 = 203,947,508.40/x
  3. Step 3: Cross multiply
    664,010,077.20x = 996,015,115.80 × 203,947,508.40
  4. Step 4: Simplify right side
    664,010,077.20x = 203,134,801,196,147,456
  5. Step 5: Solve for x
    x = 203,134,801,196,147,456/664,010,077.20
  6. Step 6: Final answer
    x = 305,921,262.60

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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.