Home / 279,660,987.10-419,491,480.65-252,451,207.90

Finding the Fourth Proportional to 279,660,987.10, 419,491,480.65 and 252,451,207.90

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Solution

The fourth proportional to 279,660,987.10, 419,491,480.65 and 252,451,207.90 is: 378,676,811.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,660,987.10 : 419,491,480.65 = 252,451,207.90 : x
  2. Step 2: Convert to fraction form
    279,660,987.10/419,491,480.65 = 252,451,207.90/x
  3. Step 3: Cross multiply
    279,660,987.10x = 419,491,480.65 × 252,451,207.90
  4. Step 4: Simplify right side
    279,660,987.10x = 105,901,130,993,851,968
  5. Step 5: Solve for x
    x = 105,901,130,993,851,968/279,660,987.10
  6. Step 6: Final answer
    x = 378,676,811.85

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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.