Home / 627,078,005.75-865,422,788.42-344,870,176.68

Finding the Fourth Proportional to 627,078,005.75, 865,422,788.42 and 344,870,176.68

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Solution

The fourth proportional to 627,078,005.75, 865,422,788.42 and 344,870,176.68 is: 475,951,169.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,078,005.75 : 865,422,788.42 = 344,870,176.68 : x
  2. Step 2: Convert to fraction form
    627,078,005.75/865,422,788.42 = 344,870,176.68/x
  3. Step 3: Cross multiply
    627,078,005.75x = 865,422,788.42 × 344,870,176.68
  4. Step 4: Simplify right side
    627,078,005.75x = 298,458,509,945,303,680
  5. Step 5: Solve for x
    x = 298,458,509,945,303,680/627,078,005.75
  6. Step 6: Final answer
    x = 475,951,169.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.