Home / 645,873,789.60-968,149,335.60-317,844,784.80

Finding the Fourth Proportional to 645,873,789.60, 968,149,335.60 and 317,844,784.80

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Solution

The fourth proportional to 645,873,789.60, 968,149,335.60 and 317,844,784.80 is: 476,441,716.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,873,789.60 : 968,149,335.60 = 317,844,784.80 : x
  2. Step 2: Convert to fraction form
    645,873,789.60/968,149,335.60 = 317,844,784.80/x
  3. Step 3: Cross multiply
    645,873,789.60x = 968,149,335.60 × 317,844,784.80
  4. Step 4: Simplify right side
    645,873,789.60x = 307,721,217,228,044,992
  5. Step 5: Solve for x
    x = 307,721,217,228,044,992/645,873,789.60
  6. Step 6: Final answer
    x = 476,441,716.92

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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.