Home / 259,498,142.05-358,108,385.12-140,420,735.34

Finding the Fourth Proportional to 259,498,142.05, 358,108,385.12 and 140,420,735.34

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Solution

The fourth proportional to 259,498,142.05, 358,108,385.12 and 140,420,735.34 is: 193,781,128.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,498,142.05 : 358,108,385.12 = 140,420,735.34 : x
  2. Step 2: Convert to fraction form
    259,498,142.05/358,108,385.12 = 140,420,735.34/x
  3. Step 3: Cross multiply
    259,498,142.05x = 358,108,385.12 × 140,420,735.34
  4. Step 4: Simplify right side
    259,498,142.05x = 50,285,842,769,970,320
  5. Step 5: Solve for x
    x = 50,285,842,769,970,320/259,498,142.05
  6. Step 6: Final answer
    x = 193,781,128.35

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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.