Home / 18,821,665.70-28,232,498.55-11,244,731.30

Finding the Fourth Proportional to 18,821,665.70, 28,232,498.55 and 11,244,731.30

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Solution

The fourth proportional to 18,821,665.70, 28,232,498.55 and 11,244,731.30 is: 16,867,096.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821,665.70 : 28,232,498.55 = 11,244,731.30 : x
  2. Step 2: Convert to fraction form
    18,821,665.70/28,232,498.55 = 11,244,731.30/x
  3. Step 3: Cross multiply
    18,821,665.70x = 28,232,498.55 × 11,244,731.30
  4. Step 4: Simplify right side
    18,821,665.70x = 317,466,860,122,389.62
  5. Step 5: Solve for x
    x = 317,466,860,122,389.62/18,821,665.70
  6. Step 6: Final answer
    x = 16,867,096.95

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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.