Home / 20,451,215.90-30,676,823.85-19,191,503.90

Finding the Fourth Proportional to 20,451,215.90, 30,676,823.85 and 19,191,503.90

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Solution

The fourth proportional to 20,451,215.90, 30,676,823.85 and 19,191,503.90 is: 28,787,255.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451,215.90 : 30,676,823.85 = 19,191,503.90 : x
  2. Step 2: Convert to fraction form
    20,451,215.90/30,676,823.85 = 19,191,503.90/x
  3. Step 3: Cross multiply
    20,451,215.90x = 30,676,823.85 × 19,191,503.90
  4. Step 4: Simplify right side
    20,451,215.90x = 588,734,384,556,888
  5. Step 5: Solve for x
    x = 588,734,384,556,888/20,451,215.90
  6. Step 6: Final answer
    x = 28,787,255.85

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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.