Home / 1,246,335,027.20-1,869,502,540.80-519,229,260.80

Finding the Fourth Proportional to 1,246,335,027.20, 1,869,502,540.80 and 519,229,260.80

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Solution

The fourth proportional to 1,246,335,027.20, 1,869,502,540.80 and 519,229,260.80 is: 778,843,891.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,335,027.20 : 1,869,502,540.80 = 519,229,260.80 : x
  2. Step 2: Convert to fraction form
    1,246,335,027.20/1,869,502,540.80 = 519,229,260.80/x
  3. Step 3: Cross multiply
    1,246,335,027.20x = 1,869,502,540.80 × 519,229,260.80
  4. Step 4: Simplify right side
    1,246,335,027.20x = 970,700,422,323,305,856
  5. Step 5: Solve for x
    x = 970,700,422,323,305,856/1,246,335,027.20
  6. Step 6: Final answer
    x = 778,843,891.20

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Double scale
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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.