Home / 132,156,685.90-198,235,028.85-80,500,620.70

Finding the Fourth Proportional to 132,156,685.90, 198,235,028.85 and 80,500,620.70

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Solution

The fourth proportional to 132,156,685.90, 198,235,028.85 and 80,500,620.70 is: 120,750,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,156,685.90 : 198,235,028.85 = 80,500,620.70 : x
  2. Step 2: Convert to fraction form
    132,156,685.90/198,235,028.85 = 80,500,620.70/x
  3. Step 3: Cross multiply
    132,156,685.90x = 198,235,028.85 × 80,500,620.70
  4. Step 4: Simplify right side
    132,156,685.90x = 15,958,042,866,907,408
  5. Step 5: Solve for x
    x = 15,958,042,866,907,408/132,156,685.90
  6. Step 6: Final answer
    x = 120,750,931.05

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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.