Home / 138,229,546.50-207,375,246.36-51,968,700.72

Finding the Fourth Proportional to 138,229,546.50, 207,375,246.36 and 51,968,700.72

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Solution

The fourth proportional to 138,229,546.50, 207,375,246.36 and 51,968,700.72 is: 77,964,678.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,229,546.50 : 207,375,246.36 = 51,968,700.72 : x
  2. Step 2: Convert to fraction form
    138,229,546.50/207,375,246.36 = 51,968,700.72/x
  3. Step 3: Cross multiply
    138,229,546.50x = 207,375,246.36 × 51,968,700.72
  4. Step 4: Simplify right side
    138,229,546.50x = 10,777,022,114,819,110
  5. Step 5: Solve for x
    x = 10,777,022,114,819,110/138,229,546.50
  6. Step 6: Final answer
    x = 77,964,678.23

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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.