Home / 627,078,007.76-865,422,791.18-344,870,178.68

Finding the Fourth Proportional to 627,078,007.76, 865,422,791.18 and 344,870,178.68

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Solution

The fourth proportional to 627,078,007.76, 865,422,791.18 and 344,870,178.68 is: 475,951,171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,078,007.76 : 865,422,791.18 = 344,870,178.68 : x
  2. Step 2: Convert to fraction form
    627,078,007.76/865,422,791.18 = 344,870,178.68/x
  3. Step 3: Cross multiply
    627,078,007.76x = 865,422,791.18 × 344,870,178.68
  4. Step 4: Simplify right side
    627,078,007.76x = 298,458,512,627,990,912
  5. Step 5: Solve for x
    x = 298,458,512,627,990,912/627,078,007.76
  6. Step 6: Final answer
    x = 475,951,171.84

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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.