Home / 419,904,584.10-629,856,876.15-256,645,908.90

Finding the Fourth Proportional to 419,904,584.10, 629,856,876.15 and 256,645,908.90

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Solution

The fourth proportional to 419,904,584.10, 629,856,876.15 and 256,645,908.90 is: 384,968,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,584.10 : 629,856,876.15 = 256,645,908.90 : x
  2. Step 2: Convert to fraction form
    419,904,584.10/629,856,876.15 = 256,645,908.90/x
  3. Step 3: Cross multiply
    419,904,584.10x = 629,856,876.15 × 256,645,908.90
  4. Step 4: Simplify right side
    419,904,584.10x = 161,650,190,456,431,488
  5. Step 5: Solve for x
    x = 161,650,190,456,431,488/419,904,584.10
  6. Step 6: Final answer
    x = 384,968,863.35

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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.