Home / 142,265,195.18-196,323,410.22-80,384,205.14

Finding the Fourth Proportional to 142,265,195.18, 196,323,410.22 and 80,384,205.14

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Solution

The fourth proportional to 142,265,195.18, 196,323,410.22 and 80,384,205.14 is: 110,928,757.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,265,195.18 : 196,323,410.22 = 80,384,205.14 : x
  2. Step 2: Convert to fraction form
    142,265,195.18/196,323,410.22 = 80,384,205.14/x
  3. Step 3: Cross multiply
    142,265,195.18x = 196,323,410.22 × 80,384,205.14
  4. Step 4: Simplify right side
    142,265,195.18x = 15,781,301,280,908,852
  5. Step 5: Solve for x
    x = 15,781,301,280,908,852/142,265,195.18
  6. Step 6: Final answer
    x = 110,928,757.11

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1.5x scale

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.