Home / 18,894,962.20-28,342,443.30-12,170,968.60

Finding the Fourth Proportional to 18,894,962.20, 28,342,443.30 and 12,170,968.60

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Solution

The fourth proportional to 18,894,962.20, 28,342,443.30 and 12,170,968.60 is: 18,256,452.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,894,962.20 : 28,342,443.30 = 12,170,968.60 : x
  2. Step 2: Convert to fraction form
    18,894,962.20/28,342,443.30 = 12,170,968.60/x
  3. Step 3: Cross multiply
    18,894,962.20x = 28,342,443.30 × 12,170,968.60
  4. Step 4: Simplify right side
    18,894,962.20x = 344,954,987,451,580.38
  5. Step 5: Solve for x
    x = 344,954,987,451,580.38/18,894,962.20
  6. Step 6: Final answer
    x = 18,256,452.90

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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.