Home / 67,040,975.16-100,507,219.56-20,959,135.56

Finding the Fourth Proportional to 67,040,975.16, 100,507,219.56 and 20,959,135.56

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Solution

The fourth proportional to 67,040,975.16, 100,507,219.56 and 20,959,135.56 is: 31,421,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,040,975.16 : 100,507,219.56 = 20,959,135.56 : x
  2. Step 2: Convert to fraction form
    67,040,975.16/100,507,219.56 = 20,959,135.56/x
  3. Step 3: Cross multiply
    67,040,975.16x = 100,507,219.56 × 20,959,135.56
  4. Step 4: Simplify right side
    67,040,975.16x = 2,106,544,439,516,723.50
  5. Step 5: Solve for x
    x = 2,106,544,439,516,723.50/67,040,975.16
  6. Step 6: Final answer
    x = 31,421,745.20

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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.