Home / 132,192,000.20-198,288,000.30-91,377,331.40

Finding the Fourth Proportional to 132,192,000.20, 198,288,000.30 and 91,377,331.40

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Solution

The fourth proportional to 132,192,000.20, 198,288,000.30 and 91,377,331.40 is: 137,065,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,192,000.20 : 198,288,000.30 = 91,377,331.40 : x
  2. Step 2: Convert to fraction form
    132,192,000.20/198,288,000.30 = 91,377,331.40/x
  3. Step 3: Cross multiply
    132,192,000.20x = 198,288,000.30 × 91,377,331.40
  4. Step 4: Simplify right side
    132,192,000.20x = 18,119,028,316,056,400
  5. Step 5: Solve for x
    x = 18,119,028,316,056,400/132,192,000.20
  6. Step 6: Final answer
    x = 137,065,997.10

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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.