Home / 138,374,708.59-207,638,675.52-82,906,234.08

Finding the Fourth Proportional to 138,374,708.59, 207,638,675.52 and 82,906,234.08

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Solution

The fourth proportional to 138,374,708.59, 207,638,675.52 and 82,906,234.08 is: 124,405,253.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,374,708.59 : 207,638,675.52 = 82,906,234.08 : x
  2. Step 2: Convert to fraction form
    138,374,708.59/207,638,675.52 = 82,906,234.08/x
  3. Step 3: Cross multiply
    138,374,708.59x = 207,638,675.52 × 82,906,234.08
  4. Step 4: Simplify right side
    138,374,708.59x = 17,214,540,636,722,286
  5. Step 5: Solve for x
    x = 17,214,540,636,722,286/138,374,708.59
  6. Step 6: Final answer
    x = 124,405,253.04

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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.