Home / 231,250,421,843.18-319,126,500,468.83-129,745,679,768.90

Finding the Fourth Proportional to 231,250,421,843.18, 319,126,500,468.83 and 129,745,679,768.90

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Solution

The fourth proportional to 231,250,421,843.18, 319,126,500,468.83 and 129,745,679,768.90 is: 179,049,553,317.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,250,421,843.18 : 319,126,500,468.83 = 129,745,679,768.90 : x
  2. Step 2: Convert to fraction form
    231,250,421,843.18/319,126,500,468.83 = 129,745,679,768.90/x
  3. Step 3: Cross multiply
    231,250,421,843.18x = 319,126,500,468.83 × 129,745,679,768.90
  4. Step 4: Simplify right side
    231,250,421,843.18x = 41,405,284,735,598,536,425,472
  5. Step 5: Solve for x
    x = 41,405,284,735,598,536,425,472/231,250,421,843.18
  6. Step 6: Final answer
    x = 179,049,553,317.91

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1.5x scale

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.