Home / 1,331,150,575.20-1,992,899,487.60-814,589,923.20

Finding the Fourth Proportional to 1,331,150,575.20, 1,992,899,487.60 and 814,589,923.20

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Solution

The fourth proportional to 1,331,150,575.20, 1,992,899,487.60 and 814,589,923.20 is: 1,219,543,356.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,150,575.20 : 1,992,899,487.60 = 814,589,923.20 : x
  2. Step 2: Convert to fraction form
    1,331,150,575.20/1,992,899,487.60 = 814,589,923.20/x
  3. Step 3: Cross multiply
    1,331,150,575.20x = 1,992,899,487.60 × 814,589,923.20
  4. Step 4: Simplify right side
    1,331,150,575.20x = 1,623,395,840,549,403,392
  5. Step 5: Solve for x
    x = 1,623,395,840,549,403,392/1,331,150,575.20
  6. Step 6: Final answer
    x = 1,219,543,356.55

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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.