Home / 279,937,589.40-419,906,384.10-239,122,920.60

Finding the Fourth Proportional to 279,937,589.40, 419,906,384.10 and 239,122,920.60

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Solution

The fourth proportional to 279,937,589.40, 419,906,384.10 and 239,122,920.60 is: 358,684,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,937,589.40 : 419,906,384.10 = 239,122,920.60 : x
  2. Step 2: Convert to fraction form
    279,937,589.40/419,906,384.10 = 239,122,920.60/x
  3. Step 3: Cross multiply
    279,937,589.40x = 419,906,384.10 × 239,122,920.60
  4. Step 4: Simplify right side
    279,937,589.40x = 100,409,240,944,577,408
  5. Step 5: Solve for x
    x = 100,409,240,944,577,408/279,937,589.40
  6. Step 6: Final answer
    x = 358,684,380.90

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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.