Home / 69,542,601.40-104,313,902.10-21,054,515.06

Finding the Fourth Proportional to 69,542,601.40, 104,313,902.10 and 21,054,515.06

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Solution

The fourth proportional to 69,542,601.40, 104,313,902.10 and 21,054,515.06 is: 31,581,772.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,542,601.40 : 104,313,902.10 = 21,054,515.06 : x
  2. Step 2: Convert to fraction form
    69,542,601.40/104,313,902.10 = 21,054,515.06/x
  3. Step 3: Cross multiply
    69,542,601.40x = 104,313,902.10 × 21,054,515.06
  4. Step 4: Simplify right side
    69,542,601.40x = 2,196,278,622,731,815.25
  5. Step 5: Solve for x
    x = 2,196,278,622,731,815.25/69,542,601.40
  6. Step 6: Final answer
    x = 31,581,772.59

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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.