Home / 231,250,421,843.68-319,126,500,469.52-129,745,679,769.40

Finding the Fourth Proportional to 231,250,421,843.68, 319,126,500,469.52 and 129,745,679,769.40

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Solution

The fourth proportional to 231,250,421,843.68, 319,126,500,469.52 and 129,745,679,769.40 is: 179,049,553,318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,250,421,843.68 : 319,126,500,469.52 = 129,745,679,769.40 : x
  2. Step 2: Convert to fraction form
    231,250,421,843.68/319,126,500,469.52 = 129,745,679,769.40/x
  3. Step 3: Cross multiply
    231,250,421,843.68x = 319,126,500,469.52 × 129,745,679,769.40
  4. Step 4: Simplify right side
    231,250,421,843.68x = 41,405,284,735,847,619,362,816
  5. Step 5: Solve for x
    x = 41,405,284,735,847,619,362,816/231,250,421,843.68
  6. Step 6: Final answer
    x = 179,049,553,318.60

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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.