Home / 69,823,906.42-104,738,807.46-20,639,872.25

Finding the Fourth Proportional to 69,823,906.42, 104,738,807.46 and 20,639,872.25

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Solution

The fourth proportional to 69,823,906.42, 104,738,807.46 and 20,639,872.25 is: 30,960,679.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,823,906.42 : 104,738,807.46 = 20,639,872.25 : x
  2. Step 2: Convert to fraction form
    69,823,906.42/104,738,807.46 = 20,639,872.25/x
  3. Step 3: Cross multiply
    69,823,906.42x = 104,738,807.46 × 20,639,872.25
  4. Step 4: Simplify right side
    69,823,906.42x = 2,161,795,605,591,746.75
  5. Step 5: Solve for x
    x = 2,161,795,605,591,746.75/69,823,906.42
  6. Step 6: Final answer
    x = 30,960,679.75

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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.