Home / 13,729,386.50-18,945,174.14-8,222,620.33

Finding the Fourth Proportional to 13,729,386.50, 18,945,174.14 and 8,222,620.33

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Solution

The fourth proportional to 13,729,386.50, 18,945,174.14 and 8,222,620.33 is: 11,346,390.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729,386.50 : 18,945,174.14 = 8,222,620.33 : x
  2. Step 2: Convert to fraction form
    13,729,386.50/18,945,174.14 = 8,222,620.33/x
  3. Step 3: Cross multiply
    13,729,386.50x = 18,945,174.14 × 8,222,620.33
  4. Step 4: Simplify right side
    13,729,386.50x = 155,778,974,052,357.47
  5. Step 5: Solve for x
    x = 155,778,974,052,357.47/13,729,386.50
  6. Step 6: Final answer
    x = 11,346,390.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.