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Finding the Fourth Proportional to 299,559,967.70, 449,339,951.55 and 251,187,026.90

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Solution

The fourth proportional to 299,559,967.70, 449,339,951.55 and 251,187,026.90 is: 376,780,540.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,559,967.70 : 449,339,951.55 = 251,187,026.90 : x
  2. Step 2: Convert to fraction form
    299,559,967.70/449,339,951.55 = 251,187,026.90/x
  3. Step 3: Cross multiply
    299,559,967.70x = 449,339,951.55 × 251,187,026.90
  4. Step 4: Simplify right side
    299,559,967.70x = 112,868,366,497,234,560
  5. Step 5: Solve for x
    x = 112,868,366,497,234,560/299,559,967.70
  6. Step 6: Final answer
    x = 376,780,540.35

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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.