Home / 12,984,396.20-19,476,594.30-12,431,522.60

Finding the Fourth Proportional to 12,984,396.20, 19,476,594.30 and 12,431,522.60

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Solution

The fourth proportional to 12,984,396.20, 19,476,594.30 and 12,431,522.60 is: 18,647,283.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984,396.20 : 19,476,594.30 = 12,431,522.60 : x
  2. Step 2: Convert to fraction form
    12,984,396.20/19,476,594.30 = 12,431,522.60/x
  3. Step 3: Cross multiply
    12,984,396.20x = 19,476,594.30 × 12,431,522.60
  4. Step 4: Simplify right side
    12,984,396.20x = 242,123,722,211,481.19
  5. Step 5: Solve for x
    x = 242,123,722,211,481.19/12,984,396.20
  6. Step 6: Final answer
    x = 18,647,283.90

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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.