Home / 279,504,266.20-419,256,399.30-255,317,795.80

Finding the Fourth Proportional to 279,504,266.20, 419,256,399.30 and 255,317,795.80

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Solution

The fourth proportional to 279,504,266.20, 419,256,399.30 and 255,317,795.80 is: 382,976,693.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,504,266.20 : 419,256,399.30 = 255,317,795.80 : x
  2. Step 2: Convert to fraction form
    279,504,266.20/419,256,399.30 = 255,317,795.80/x
  3. Step 3: Cross multiply
    279,504,266.20x = 419,256,399.30 × 255,317,795.80
  4. Step 4: Simplify right side
    279,504,266.20x = 107,043,619,744,320,672
  5. Step 5: Solve for x
    x = 107,043,619,744,320,672/279,504,266.20
  6. Step 6: Final answer
    x = 382,976,693.70

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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.