Home / 299,447,974.80-449,171,962.20-255,609,997.20

Finding the Fourth Proportional to 299,447,974.80, 449,171,962.20 and 255,609,997.20

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Solution

The fourth proportional to 299,447,974.80, 449,171,962.20 and 255,609,997.20 is: 383,414,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,447,974.80 : 449,171,962.20 = 255,609,997.20 : x
  2. Step 2: Convert to fraction form
    299,447,974.80/449,171,962.20 = 255,609,997.20/x
  3. Step 3: Cross multiply
    299,447,974.80x = 449,171,962.20 × 255,609,997.20
  4. Step 4: Simplify right side
    299,447,974.80x = 114,812,844,000,260,496
  5. Step 5: Solve for x
    x = 114,812,844,000,260,496/299,447,974.80
  6. Step 6: Final answer
    x = 383,414,995.80

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1.5x scale

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.