Home / 215,703,902.60-323,555,853.90-86,331,480.20

Finding the Fourth Proportional to 215,703,902.60, 323,555,853.90 and 86,331,480.20

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Solution

The fourth proportional to 215,703,902.60, 323,555,853.90 and 86,331,480.20 is: 129,497,220.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,703,902.60 : 323,555,853.90 = 86,331,480.20 : x
  2. Step 2: Convert to fraction form
    215,703,902.60/323,555,853.90 = 86,331,480.20/x
  3. Step 3: Cross multiply
    215,703,902.60x = 323,555,853.90 × 86,331,480.20
  4. Step 4: Simplify right side
    215,703,902.60x = 27,933,055,794,561,940
  5. Step 5: Solve for x
    x = 27,933,055,794,561,940/215,703,902.60
  6. Step 6: Final answer
    x = 129,497,220.30

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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.