Home / 220,188,419.40-330,198,648.30-66,783,491.40

Finding the Fourth Proportional to 220,188,419.40, 330,198,648.30 and 66,783,491.40

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Solution

The fourth proportional to 220,188,419.40, 330,198,648.30 and 66,783,491.40 is: 100,149,765.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,188,419.40 : 330,198,648.30 = 66,783,491.40 : x
  2. Step 2: Convert to fraction form
    220,188,419.40/330,198,648.30 = 66,783,491.40/x
  3. Step 3: Cross multiply
    220,188,419.40x = 330,198,648.30 × 66,783,491.40
  4. Step 4: Simplify right side
    220,188,419.40x = 22,051,818,589,034,676
  5. Step 5: Solve for x
    x = 22,051,818,589,034,676/220,188,419.40
  6. Step 6: Final answer
    x = 100,149,765.59

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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.