Home / 13,479,880.20-20,219,820.30-3,895,571.40

Finding the Fourth Proportional to 13,479,880.20, 20,219,820.30 and 3,895,571.40

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Solution

The fourth proportional to 13,479,880.20, 20,219,820.30 and 3,895,571.40 is: 5,843,357.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,880.20 : 20,219,820.30 = 3,895,571.40 : x
  2. Step 2: Convert to fraction form
    13,479,880.20/20,219,820.30 = 3,895,571.40/x
  3. Step 3: Cross multiply
    13,479,880.20x = 20,219,820.30 × 3,895,571.40
  4. Step 4: Simplify right side
    13,479,880.20x = 78,767,753,673,819.42
  5. Step 5: Solve for x
    x = 78,767,753,673,819.42/13,479,880.20
  6. Step 6: Final answer
    x = 5,843,357.10

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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.