Home / 12,162,620.40-18,243,930.60-3,188,079.60

Finding the Fourth Proportional to 12,162,620.40, 18,243,930.60 and 3,188,079.60

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Solution

The fourth proportional to 12,162,620.40, 18,243,930.60 and 3,188,079.60 is: 4,782,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162,620.40 : 18,243,930.60 = 3,188,079.60 : x
  2. Step 2: Convert to fraction form
    12,162,620.40/18,243,930.60 = 3,188,079.60/x
  3. Step 3: Cross multiply
    12,162,620.40x = 18,243,930.60 × 3,188,079.60
  4. Step 4: Simplify right side
    12,162,620.40x = 58,163,102,969,675.77
  5. Step 5: Solve for x
    x = 58,163,102,969,675.77/12,162,620.40
  6. Step 6: Final answer
    x = 4,782,119.40

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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.