Home / 197,278,331.90-272,244,627.59-109,178,404.88

Finding the Fourth Proportional to 197,278,331.90, 272,244,627.59 and 109,178,404.88

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Solution

The fourth proportional to 197,278,331.90, 272,244,627.59 and 109,178,404.88 is: 150,666,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,278,331.90 : 272,244,627.59 = 109,178,404.88 : x
  2. Step 2: Convert to fraction form
    197,278,331.90/272,244,627.59 = 109,178,404.88/x
  3. Step 3: Cross multiply
    197,278,331.90x = 272,244,627.59 × 109,178,404.88
  4. Step 4: Simplify right side
    197,278,331.90x = 29,723,234,175,518,720
  5. Step 5: Solve for x
    x = 29,723,234,175,518,720/197,278,331.90
  6. Step 6: Final answer
    x = 150,666,491.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.