Home / 18,809,946.60-28,214,919.90-15,940,165.20

Finding the Fourth Proportional to 18,809,946.60, 28,214,919.90 and 15,940,165.20

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Solution

The fourth proportional to 18,809,946.60, 28,214,919.90 and 15,940,165.20 is: 23,910,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809,946.60 : 28,214,919.90 = 15,940,165.20 : x
  2. Step 2: Convert to fraction form
    18,809,946.60/28,214,919.90 = 15,940,165.20/x
  3. Step 3: Cross multiply
    18,809,946.60x = 28,214,919.90 × 15,940,165.20
  4. Step 4: Simplify right side
    18,809,946.60x = 449,750,484,310,767.44
  5. Step 5: Solve for x
    x = 449,750,484,310,767.44/18,809,946.60
  6. Step 6: Final answer
    x = 23,910,247.80

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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.