Home / 21,040,546.20-31,561,803.45-6,664,739.10

Finding the Fourth Proportional to 21,040,546.20, 31,561,803.45 and 6,664,739.10

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Solution

The fourth proportional to 21,040,546.20, 31,561,803.45 and 6,664,739.10 is: 9,997,420.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040,546.20 : 31,561,803.45 = 6,664,739.10 : x
  2. Step 2: Convert to fraction form
    21,040,546.20/31,561,803.45 = 6,664,739.10/x
  3. Step 3: Cross multiply
    21,040,546.20x = 31,561,803.45 × 6,664,739.10
  4. Step 4: Simplify right side
    21,040,546.20x = 210,351,185,519,729.88
  5. Step 5: Solve for x
    x = 210,351,185,519,729.88/21,040,546.20
  6. Step 6: Final answer
    x = 9,997,420.39

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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.