Home / 311,876,451.13-430,392,903.78-172,649,537.95

Finding the Fourth Proportional to 311,876,451.13, 430,392,903.78 and 172,649,537.95

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Solution

The fourth proportional to 311,876,451.13, 430,392,903.78 and 172,649,537.95 is: 238,258,245.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,876,451.13 : 430,392,903.78 = 172,649,537.95 : x
  2. Step 2: Convert to fraction form
    311,876,451.13/430,392,903.78 = 172,649,537.95/x
  3. Step 3: Cross multiply
    311,876,451.13x = 430,392,903.78 × 172,649,537.95
  4. Step 4: Simplify right side
    311,876,451.13x = 74,307,135,974,469,536
  5. Step 5: Solve for x
    x = 74,307,135,974,469,536/311,876,451.13
  6. Step 6: Final answer
    x = 238,258,245.23

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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.