Home / 138,229,561.32-207,375,268.59-51,968,715.54

Finding the Fourth Proportional to 138,229,561.32, 207,375,268.59 and 51,968,715.54

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Solution

The fourth proportional to 138,229,561.32, 207,375,268.59 and 51,968,715.54 is: 77,964,700.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,229,561.32 : 207,375,268.59 = 51,968,715.54 : x
  2. Step 2: Convert to fraction form
    138,229,561.32/207,375,268.59 = 51,968,715.54/x
  3. Step 3: Cross multiply
    138,229,561.32x = 207,375,268.59 × 51,968,715.54
  4. Step 4: Simplify right side
    138,229,561.32x = 10,777,026,343,384,806
  5. Step 5: Solve for x
    x = 10,777,026,343,384,806/138,229,561.32
  6. Step 6: Final answer
    x = 77,964,700.46

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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.