Home / 215,584,432.20-323,378,048.70-86,202,911.88

Finding the Fourth Proportional to 215,584,432.20, 323,378,048.70 and 86,202,911.88

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Solution

The fourth proportional to 215,584,432.20, 323,378,048.70 and 86,202,911.88 is: 129,304,927.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,584,432.20 : 323,378,048.70 = 86,202,911.88 : x
  2. Step 2: Convert to fraction form
    215,584,432.20/323,378,048.70 = 86,202,911.88/x
  3. Step 3: Cross multiply
    215,584,432.20x = 323,378,048.70 × 86,202,911.88
  4. Step 4: Simplify right side
    215,584,432.20x = 27,876,129,436,012,444
  5. Step 5: Solve for x
    x = 27,876,129,436,012,444/215,584,432.20
  6. Step 6: Final answer
    x = 129,304,927.78

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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.