Home / 138,140,083.46-207,107,972.83-83,540,530.56

Finding the Fourth Proportional to 138,140,083.46, 207,107,972.83 and 83,540,530.56

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Solution

The fourth proportional to 138,140,083.46, 207,107,972.83 and 83,540,530.56 is: 125,249,018.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,140,083.46 : 207,107,972.83 = 83,540,530.56 : x
  2. Step 2: Convert to fraction form
    138,140,083.46/207,107,972.83 = 83,540,530.56/x
  3. Step 3: Cross multiply
    138,140,083.46x = 207,107,972.83 × 83,540,530.56
  4. Step 4: Simplify right side
    138,140,083.46x = 17,301,909,933,424,266
  5. Step 5: Solve for x
    x = 17,301,909,933,424,266/138,140,083.46
  6. Step 6: Final answer
    x = 125,249,018.97

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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.