Home / 142,265,213.68-196,323,435.72-80,384,223.64

Finding the Fourth Proportional to 142,265,213.68, 196,323,435.72 and 80,384,223.64

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Solution

The fourth proportional to 142,265,213.68, 196,323,435.72 and 80,384,223.64 is: 110,928,782.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,265,213.68 : 196,323,435.72 = 80,384,223.64 : x
  2. Step 2: Convert to fraction form
    142,265,213.68/196,323,435.72 = 80,384,223.64/x
  3. Step 3: Cross multiply
    142,265,213.68x = 196,323,435.72 × 80,384,223.64
  4. Step 4: Simplify right side
    142,265,213.68x = 15,781,306,962,689,644
  5. Step 5: Solve for x
    x = 15,781,306,962,689,644/142,265,213.68
  6. Step 6: Final answer
    x = 110,928,782.62

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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.