Home / 117,687,198.38-162,409,821.12-64,769,996.79

Finding the Fourth Proportional to 117,687,198.38, 162,409,821.12 and 64,769,996.79

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Solution

The fourth proportional to 117,687,198.38, 162,409,821.12 and 64,769,996.79 is: 89,383,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,687,198.38 : 162,409,821.12 = 64,769,996.79 : x
  2. Step 2: Convert to fraction form
    117,687,198.38/162,409,821.12 = 64,769,996.79/x
  3. Step 3: Cross multiply
    117,687,198.38x = 162,409,821.12 × 64,769,996.79
  4. Step 4: Simplify right side
    117,687,198.38x = 10,519,283,592,606,874
  5. Step 5: Solve for x
    x = 10,519,283,592,606,874/117,687,198.38
  6. Step 6: Final answer
    x = 89,383,414.15

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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.