Home / 132,119,999.20-198,179,998.80-120,215,720.80

Finding the Fourth Proportional to 132,119,999.20, 198,179,998.80 and 120,215,720.80

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Solution

The fourth proportional to 132,119,999.20, 198,179,998.80 and 120,215,720.80 is: 180,323,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,119,999.20 : 198,179,998.80 = 120,215,720.80 : x
  2. Step 2: Convert to fraction form
    132,119,999.20/198,179,998.80 = 120,215,720.80/x
  3. Step 3: Cross multiply
    132,119,999.20x = 198,179,998.80 × 120,215,720.80
  4. Step 4: Simplify right side
    132,119,999.20x = 23,824,351,403,885,136
  5. Step 5: Solve for x
    x = 23,824,351,403,885,136/132,119,999.20
  6. Step 6: Final answer
    x = 180,323,581.20

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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.