Home / 117,517,875.78-162,003,747.76-82,125,799.68

Finding the Fourth Proportional to 117,517,875.78, 162,003,747.76 and 82,125,799.68

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Solution

The fourth proportional to 117,517,875.78, 162,003,747.76 and 82,125,799.68 is: 113,214,157.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,517,875.78 : 162,003,747.76 = 82,125,799.68 : x
  2. Step 2: Convert to fraction form
    117,517,875.78/162,003,747.76 = 82,125,799.68/x
  3. Step 3: Cross multiply
    117,517,875.78x = 162,003,747.76 × 82,125,799.68
  4. Step 4: Simplify right side
    117,517,875.78x = 13,304,687,335,947,010
  5. Step 5: Solve for x
    x = 13,304,687,335,947,010/117,517,875.78
  6. Step 6: Final answer
    x = 113,214,157.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.