Home / 73,010,189-109,622,940.78-40,725,170.12

Finding the Fourth Proportional to 73,010,189, 109,622,940.78 and 40,725,170.12

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Solution

The fourth proportional to 73,010,189, 109,622,940.78 and 40,725,170.12 is: 61,147,806.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,010,189 : 109,622,940.78 = 40,725,170.12 : x
  2. Step 2: Convert to fraction form
    73,010,189/109,622,940.78 = 40,725,170.12/x
  3. Step 3: Cross multiply
    73,010,189x = 109,622,940.78 × 40,725,170.12
  4. Step 4: Simplify right side
    73,010,189x = 4,464,412,912,320,185
  5. Step 5: Solve for x
    x = 4,464,412,912,320,185/73,010,189
  6. Step 6: Final answer
    x = 61,147,806.54

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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.