Home / 400,150,537.92-552,195,878.54-221,542,383.78

Finding the Fourth Proportional to 400,150,537.92, 552,195,878.54 and 221,542,383.78

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Solution

The fourth proportional to 400,150,537.92, 552,195,878.54 and 221,542,383.78 is: 305,721,921.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,150,537.92 : 552,195,878.54 = 221,542,383.78 : x
  2. Step 2: Convert to fraction form
    400,150,537.92/552,195,878.54 = 221,542,383.78/x
  3. Step 3: Cross multiply
    400,150,537.92x = 552,195,878.54 × 221,542,383.78
  4. Step 4: Simplify right side
    400,150,537.92x = 122,334,791,244,135,232
  5. Step 5: Solve for x
    x = 122,334,791,244,135,232/400,150,537.92
  6. Step 6: Final answer
    x = 305,721,921.26

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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.