Home / 138,140,083.22-207,107,972.46-83,540,530.31

Finding the Fourth Proportional to 138,140,083.22, 207,107,972.46 and 83,540,530.31

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Solution

The fourth proportional to 138,140,083.22, 207,107,972.46 and 83,540,530.31 is: 125,249,018.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,140,083.22 : 207,107,972.46 = 83,540,530.31 : x
  2. Step 2: Convert to fraction form
    138,140,083.22/207,107,972.46 = 83,540,530.31/x
  3. Step 3: Cross multiply
    138,140,083.22x = 207,107,972.46 × 83,540,530.31
  4. Step 4: Simplify right side
    138,140,083.22x = 17,301,909,849,701,738
  5. Step 5: Solve for x
    x = 17,301,909,849,701,738/138,140,083.22
  6. Step 6: Final answer
    x = 125,249,018.58

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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.