Home / 185,858,083.20-256,538,221.84-123,978,274.14

Finding the Fourth Proportional to 185,858,083.20, 256,538,221.84 and 123,978,274.14

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Solution

The fourth proportional to 185,858,083.20, 256,538,221.84 and 123,978,274.14 is: 171,126,084.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,858,083.20 : 256,538,221.84 = 123,978,274.14 : x
  2. Step 2: Convert to fraction form
    185,858,083.20/256,538,221.84 = 123,978,274.14/x
  3. Step 3: Cross multiply
    185,858,083.20x = 256,538,221.84 × 123,978,274.14
  4. Step 4: Simplify right side
    185,858,083.20x = 31,805,165,994,667,656
  5. Step 5: Solve for x
    x = 31,805,165,994,667,656/185,858,083.20
  6. Step 6: Final answer
    x = 171,126,084.20

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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.