Home / 20,227,319.40-30,340,979.10-13,424,874.60

Finding the Fourth Proportional to 20,227,319.40, 30,340,979.10 and 13,424,874.60

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Solution

The fourth proportional to 20,227,319.40, 30,340,979.10 and 13,424,874.60 is: 20,137,311.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227,319.40 : 30,340,979.10 = 13,424,874.60 : x
  2. Step 2: Convert to fraction form
    20,227,319.40/30,340,979.10 = 13,424,874.60/x
  3. Step 3: Cross multiply
    20,227,319.40x = 30,340,979.10 × 13,424,874.60
  4. Step 4: Simplify right side
    20,227,319.40x = 407,323,839,658,720.88
  5. Step 5: Solve for x
    x = 407,323,839,658,720.88/20,227,319.40
  6. Step 6: Final answer
    x = 20,137,311.90

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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.