Home / 132,192,221.20-198,288,331.80-80,460,048.40

Finding the Fourth Proportional to 132,192,221.20, 198,288,331.80 and 80,460,048.40

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Solution

The fourth proportional to 132,192,221.20, 198,288,331.80 and 80,460,048.40 is: 120,690,072.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,192,221.20 : 198,288,331.80 = 80,460,048.40 : x
  2. Step 2: Convert to fraction form
    132,192,221.20/198,288,331.80 = 80,460,048.40/x
  3. Step 3: Cross multiply
    132,192,221.20x = 198,288,331.80 × 80,460,048.40
  4. Step 4: Simplify right side
    132,192,221.20x = 15,954,288,773,783,262
  5. Step 5: Solve for x
    x = 15,954,288,773,783,262/132,192,221.20
  6. Step 6: Final answer
    x = 120,690,072.60

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1.5x scale

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.