Home / 20,451,929.70-30,677,894.55-12,799,179.30

Finding the Fourth Proportional to 20,451,929.70, 30,677,894.55 and 12,799,179.30

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Solution

The fourth proportional to 20,451,929.70, 30,677,894.55 and 12,799,179.30 is: 19,198,768.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451,929.70 : 30,677,894.55 = 12,799,179.30 : x
  2. Step 2: Convert to fraction form
    20,451,929.70/30,677,894.55 = 12,799,179.30/x
  3. Step 3: Cross multiply
    20,451,929.70x = 30,677,894.55 × 12,799,179.30
  4. Step 4: Simplify right side
    20,451,929.70x = 392,651,872,891,942.88
  5. Step 5: Solve for x
    x = 392,651,872,891,942.88/20,451,929.70
  6. Step 6: Final answer
    x = 19,198,768.95

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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.