Home / 138,229,548-207,375,248.61-51,968,702.22

Finding the Fourth Proportional to 138,229,548, 207,375,248.61 and 51,968,702.22

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Solution

The fourth proportional to 138,229,548, 207,375,248.61 and 51,968,702.22 is: 77,964,680.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,229,548 : 207,375,248.61 = 51,968,702.22 : x
  2. Step 2: Convert to fraction form
    138,229,548/207,375,248.61 = 51,968,702.22/x
  3. Step 3: Cross multiply
    138,229,548x = 207,375,248.61 × 51,968,702.22
  4. Step 4: Simplify right side
    138,229,548x = 10,777,022,542,811,560
  5. Step 5: Solve for x
    x = 10,777,022,542,811,560/138,229,548
  6. Step 6: Final answer
    x = 77,964,680.48

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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.