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Finding the Fourth Proportional to 299,441,659.80, 449,162,489.70 and 255,603,682.20

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Solution

The fourth proportional to 299,441,659.80, 449,162,489.70 and 255,603,682.20 is: 383,405,523.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,441,659.80 : 449,162,489.70 = 255,603,682.20 : x
  2. Step 2: Convert to fraction form
    299,441,659.80/449,162,489.70 = 255,603,682.20/x
  3. Step 3: Cross multiply
    299,441,659.80x = 449,162,489.70 × 255,603,682.20
  4. Step 4: Simplify right side
    299,441,659.80x = 114,807,586,273,439,568
  5. Step 5: Solve for x
    x = 114,807,586,273,439,568/299,441,659.80
  6. Step 6: Final answer
    x = 383,405,523.30

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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.