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Finding the Fourth Proportional to 22,143,014.40, 33,219,770.40 and 11,361,979.20

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Solution

The fourth proportional to 22,143,014.40, 33,219,770.40 and 11,361,979.20 is: 17,045,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,143,014.40 : 33,219,770.40 = 11,361,979.20 : x
  2. Step 2: Convert to fraction form
    22,143,014.40/33,219,770.40 = 11,361,979.20/x
  3. Step 3: Cross multiply
    22,143,014.40x = 33,219,770.40 × 11,361,979.20
  4. Step 4: Simplify right side
    22,143,014.40x = 377,442,340,313,575.62
  5. Step 5: Solve for x
    x = 377,442,340,313,575.62/22,143,014.40
  6. Step 6: Final answer
    x = 17,045,662.05

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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.