Home / 21,921,937.20-32,882,905.80-21,040,138.80

Finding the Fourth Proportional to 21,921,937.20, 32,882,905.80 and 21,040,138.80

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Solution

The fourth proportional to 21,921,937.20, 32,882,905.80 and 21,040,138.80 is: 31,560,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,921,937.20 : 32,882,905.80 = 21,040,138.80 : x
  2. Step 2: Convert to fraction form
    21,921,937.20/32,882,905.80 = 21,040,138.80/x
  3. Step 3: Cross multiply
    21,921,937.20x = 32,882,905.80 × 21,040,138.80
  4. Step 4: Simplify right side
    21,921,937.20x = 691,860,902,179,325.12
  5. Step 5: Solve for x
    x = 691,860,902,179,325.12/21,921,937.20
  6. Step 6: Final answer
    x = 31,560,208.20

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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.