Home / 117,517,869.20-162,003,738.67-82,125,793.09

Finding the Fourth Proportional to 117,517,869.20, 162,003,738.67 and 82,125,793.09

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Solution

The fourth proportional to 117,517,869.20, 162,003,738.67 and 82,125,793.09 is: 113,214,148.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,517,869.20 : 162,003,738.67 = 82,125,793.09 : x
  2. Step 2: Convert to fraction form
    117,517,869.20/162,003,738.67 = 82,125,793.09/x
  3. Step 3: Cross multiply
    117,517,869.20x = 162,003,738.67 × 82,125,793.09
  4. Step 4: Simplify right side
    117,517,869.20x = 13,304,685,520,598,202
  5. Step 5: Solve for x
    x = 13,304,685,520,598,202/117,517,869.20
  6. Step 6: Final answer
    x = 113,214,148.72

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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.