Home / 132,119,940.60-198,179,910.90-86,203,438.20

Finding the Fourth Proportional to 132,119,940.60, 198,179,910.90 and 86,203,438.20

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Solution

The fourth proportional to 132,119,940.60, 198,179,910.90 and 86,203,438.20 is: 129,305,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,119,940.60 : 198,179,910.90 = 86,203,438.20 : x
  2. Step 2: Convert to fraction form
    132,119,940.60/198,179,910.90 = 86,203,438.20/x
  3. Step 3: Cross multiply
    132,119,940.60x = 198,179,910.90 × 86,203,438.20
  4. Step 4: Simplify right side
    132,119,940.60x = 17,083,789,701,749,658
  5. Step 5: Solve for x
    x = 17,083,789,701,749,658/132,119,940.60
  6. Step 6: Final answer
    x = 129,305,157.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.