Home / 67,040,954.89-100,507,189.25-20,959,115.29

Finding the Fourth Proportional to 67,040,954.89, 100,507,189.25 and 20,959,115.29

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Solution

The fourth proportional to 67,040,954.89, 100,507,189.25 and 20,959,115.29 is: 31,421,714.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,040,954.89 : 100,507,189.25 = 20,959,115.29 : x
  2. Step 2: Convert to fraction form
    67,040,954.89/100,507,189.25 = 20,959,115.29/x
  3. Step 3: Cross multiply
    67,040,954.89x = 100,507,189.25 × 20,959,115.29
  4. Step 4: Simplify right side
    67,040,954.89x = 2,106,541,766,765,728.50
  5. Step 5: Solve for x
    x = 2,106,541,766,765,728.50/67,040,954.89
  6. Step 6: Final answer
    x = 31,421,714.84

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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.