Home / 1,279,687,209.20-1,919,530,813.80-1,131,734,034.80

Finding the Fourth Proportional to 1,279,687,209.20, 1,919,530,813.80 and 1,131,734,034.80

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Solution

The fourth proportional to 1,279,687,209.20, 1,919,530,813.80 and 1,131,734,034.80 is: 1,697,601,052.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,687,209.20 : 1,919,530,813.80 = 1,131,734,034.80 : x
  2. Step 2: Convert to fraction form
    1,279,687,209.20/1,919,530,813.80 = 1,131,734,034.80/x
  3. Step 3: Cross multiply
    1,279,687,209.20x = 1,919,530,813.80 × 1,131,734,034.80
  4. Step 4: Simplify right side
    1,279,687,209.20x = 2,172,398,352,824,801,280
  5. Step 5: Solve for x
    x = 2,172,398,352,824,801,280/1,279,687,209.20
  6. Step 6: Final answer
    x = 1,697,601,052.20

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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.