Home / 13,431,331.40-20,146,997.10-11,352,806.60

Finding the Fourth Proportional to 13,431,331.40, 20,146,997.10 and 11,352,806.60

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Solution

The fourth proportional to 13,431,331.40, 20,146,997.10 and 11,352,806.60 is: 17,029,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431,331.40 : 20,146,997.10 = 11,352,806.60 : x
  2. Step 2: Convert to fraction form
    13,431,331.40/20,146,997.10 = 11,352,806.60/x
  3. Step 3: Cross multiply
    13,431,331.40x = 20,146,997.10 × 11,352,806.60
  4. Step 4: Simplify right side
    13,431,331.40x = 228,724,961,647,060.88
  5. Step 5: Solve for x
    x = 228,724,961,647,060.88/13,431,331.40
  6. Step 6: Final answer
    x = 17,029,209.90

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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.