Home / 142,694,396.20-196,914,917.56-83,960,865.48

Finding the Fourth Proportional to 142,694,396.20, 196,914,917.56 and 83,960,865.48

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Solution

The fourth proportional to 142,694,396.20, 196,914,917.56 and 83,960,865.48 is: 115,864,023.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,694,396.20 : 196,914,917.56 = 83,960,865.48 : x
  2. Step 2: Convert to fraction form
    142,694,396.20/196,914,917.56 = 83,960,865.48/x
  3. Step 3: Cross multiply
    142,694,396.20x = 196,914,917.56 × 83,960,865.48
  4. Step 4: Simplify right side
    142,694,396.20x = 16,533,146,903,602,410
  5. Step 5: Solve for x
    x = 16,533,146,903,602,410/142,694,396.20
  6. Step 6: Final answer
    x = 115,864,023.71

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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.