Home / 215,584,425.20-323,378,038.20-86,202,904.88

Finding the Fourth Proportional to 215,584,425.20, 323,378,038.20 and 86,202,904.88

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Solution

The fourth proportional to 215,584,425.20, 323,378,038.20 and 86,202,904.88 is: 129,304,917.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,584,425.20 : 323,378,038.20 = 86,202,904.88 : x
  2. Step 2: Convert to fraction form
    215,584,425.20/323,378,038.20 = 86,202,904.88/x
  3. Step 3: Cross multiply
    215,584,425.20x = 323,378,038.20 × 86,202,904.88
  4. Step 4: Simplify right side
    215,584,425.20x = 27,876,126,267,235,604
  5. Step 5: Solve for x
    x = 27,876,126,267,235,604/215,584,425.20
  6. Step 6: Final answer
    x = 129,304,917.28

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1.5x scale

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.