Home / 645,873,794.10-968,149,342.35-317,844,789.30

Finding the Fourth Proportional to 645,873,794.10, 968,149,342.35 and 317,844,789.30

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Solution

The fourth proportional to 645,873,794.10, 968,149,342.35 and 317,844,789.30 is: 476,441,723.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,873,794.10 : 968,149,342.35 = 317,844,789.30 : x
  2. Step 2: Convert to fraction form
    645,873,794.10/968,149,342.35 = 317,844,789.30/x
  3. Step 3: Cross multiply
    645,873,794.10x = 968,149,342.35 × 317,844,789.30
  4. Step 4: Simplify right side
    645,873,794.10x = 307,721,223,730,169,344
  5. Step 5: Solve for x
    x = 307,721,223,730,169,344/645,873,794.10
  6. Step 6: Final answer
    x = 476,441,723.66

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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.