Home / 439,536,721.20-659,305,081.80-132,876,164.40

Finding the Fourth Proportional to 439,536,721.20, 659,305,081.80 and 132,876,164.40

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Solution

The fourth proportional to 439,536,721.20, 659,305,081.80 and 132,876,164.40 is: 199,314,246.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,536,721.20 : 659,305,081.80 = 132,876,164.40 : x
  2. Step 2: Convert to fraction form
    439,536,721.20/659,305,081.80 = 132,876,164.40/x
  3. Step 3: Cross multiply
    439,536,721.20x = 659,305,081.80 × 132,876,164.40
  4. Step 4: Simplify right side
    439,536,721.20x = 87,605,930,439,012,240
  5. Step 5: Solve for x
    x = 87,605,930,439,012,240/439,536,721.20
  6. Step 6: Final answer
    x = 199,314,246.60

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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.