Home / 209,515,723.35-314,078,169.86-71,246,843.73

Finding the Fourth Proportional to 209,515,723.35, 314,078,169.86 and 71,246,843.73

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Solution

The fourth proportional to 209,515,723.35, 314,078,169.86 and 71,246,843.73 is: 106,803,813.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,515,723.35 : 314,078,169.86 = 71,246,843.73 : x
  2. Step 2: Convert to fraction form
    209,515,723.35/314,078,169.86 = 71,246,843.73/x
  3. Step 3: Cross multiply
    209,515,723.35x = 314,078,169.86 × 71,246,843.73
  4. Step 4: Simplify right side
    209,515,723.35x = 22,377,078,286,663,584
  5. Step 5: Solve for x
    x = 22,377,078,286,663,584/209,515,723.35
  6. Step 6: Final answer
    x = 106,803,813.71

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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.