Home / 647,230,115.40-970,873,512.30-187,214,785.80

Finding the Fourth Proportional to 647,230,115.40, 970,873,512.30 and 187,214,785.80

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Solution

The fourth proportional to 647,230,115.40, 970,873,512.30 and 187,214,785.80 is: 280,830,375.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,230,115.40 : 970,873,512.30 = 187,214,785.80 : x
  2. Step 2: Convert to fraction form
    647,230,115.40/970,873,512.30 = 187,214,785.80/x
  3. Step 3: Cross multiply
    647,230,115.40x = 970,873,512.30 × 187,214,785.80
  4. Step 4: Simplify right side
    647,230,115.40x = 181,761,876,644,138,176
  5. Step 5: Solve for x
    x = 181,761,876,644,138,176/647,230,115.40
  6. Step 6: Final answer
    x = 280,830,375.97

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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.