Home / 268,257,815.28-402,399,716.40-74,164,934.88

Finding the Fourth Proportional to 268,257,815.28, 402,399,716.40 and 74,164,934.88

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Solution

The fourth proportional to 268,257,815.28, 402,399,716.40 and 74,164,934.88 is: 111,250,994.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,257,815.28 : 402,399,716.40 = 74,164,934.88 : x
  2. Step 2: Convert to fraction form
    268,257,815.28/402,399,716.40 = 74,164,934.88/x
  3. Step 3: Cross multiply
    268,257,815.28x = 402,399,716.40 × 74,164,934.88
  4. Step 4: Simplify right side
    268,257,815.28x = 29,843,948,762,536,464
  5. Step 5: Solve for x
    x = 29,843,948,762,536,464/268,257,815.28
  6. Step 6: Final answer
    x = 111,250,994.61

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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.