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Finding the Fourth Proportional to 299,383,311.70, 449,074,967.55 and 169,940,905.30

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Solution

The fourth proportional to 299,383,311.70, 449,074,967.55 and 169,940,905.30 is: 254,911,357.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,383,311.70 : 449,074,967.55 = 169,940,905.30 : x
  2. Step 2: Convert to fraction form
    299,383,311.70/449,074,967.55 = 169,940,905.30/x
  3. Step 3: Cross multiply
    299,383,311.70x = 449,074,967.55 × 169,940,905.30
  4. Step 4: Simplify right side
    299,383,311.70x = 76,316,206,533,015,136
  5. Step 5: Solve for x
    x = 76,316,206,533,015,136/299,383,311.70
  6. Step 6: Final answer
    x = 254,911,357.95

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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.