Home / 419,864,959.62-629,795,196.81-108,972,348.57

Finding the Fourth Proportional to 419,864,959.62, 629,795,196.81 and 108,972,348.57

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Solution

The fourth proportional to 419,864,959.62, 629,795,196.81 and 108,972,348.57 is: 163,457,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,864,959.62 : 629,795,196.81 = 108,972,348.57 : x
  2. Step 2: Convert to fraction form
    419,864,959.62/629,795,196.81 = 108,972,348.57/x
  3. Step 3: Cross multiply
    419,864,959.62x = 629,795,196.81 × 108,972,348.57
  4. Step 4: Simplify right side
    419,864,959.62x = 68,630,261,714,491,064
  5. Step 5: Solve for x
    x = 68,630,261,714,491,064/419,864,959.62
  6. Step 6: Final answer
    x = 163,457,940.80

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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.