Home / 20,928,093.40-31,392,140.10-18,091,408.60

Finding the Fourth Proportional to 20,928,093.40, 31,392,140.10 and 18,091,408.60

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Solution

The fourth proportional to 20,928,093.40, 31,392,140.10 and 18,091,408.60 is: 27,137,112.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,928,093.40 : 31,392,140.10 = 18,091,408.60 : x
  2. Step 2: Convert to fraction form
    20,928,093.40/31,392,140.10 = 18,091,408.60/x
  3. Step 3: Cross multiply
    20,928,093.40x = 31,392,140.10 × 18,091,408.60
  4. Step 4: Simplify right side
    20,928,093.40x = 567,928,033,377,544.88
  5. Step 5: Solve for x
    x = 567,928,033,377,544.88/20,928,093.40
  6. Step 6: Final answer
    x = 27,137,112.90

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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.