Home / 12,111,069.40-18,170,110.61-3,591,610.90

Finding the Fourth Proportional to 12,111,069.40, 18,170,110.61 and 3,591,610.90

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Solution

The fourth proportional to 12,111,069.40, 18,170,110.61 and 3,591,610.90 is: 5,388,456.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,111,069.40 : 18,170,110.61 = 3,591,610.90 : x
  2. Step 2: Convert to fraction form
    12,111,069.40/18,170,110.61 = 3,591,610.90/x
  3. Step 3: Cross multiply
    12,111,069.40x = 18,170,110.61 × 3,591,610.90
  4. Step 4: Simplify right side
    12,111,069.40x = 65,259,967,321,081.65
  5. Step 5: Solve for x
    x = 65,259,967,321,081.65/12,111,069.40
  6. Step 6: Final answer
    x = 5,388,456.23

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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.