Home / 13,729,388.76-18,945,177.23-8,222,622.59

Finding the Fourth Proportional to 13,729,388.76, 18,945,177.23 and 8,222,622.59

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Solution

The fourth proportional to 13,729,388.76, 18,945,177.23 and 8,222,622.59 is: 11,346,393.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729,388.76 : 18,945,177.23 = 8,222,622.59 : x
  2. Step 2: Convert to fraction form
    13,729,388.76/18,945,177.23 = 8,222,622.59/x
  3. Step 3: Cross multiply
    13,729,388.76x = 18,945,177.23 × 8,222,622.59
  4. Step 4: Simplify right side
    13,729,388.76x = 155,779,042,330,871.16
  5. Step 5: Solve for x
    x = 155,779,042,330,871.16/13,729,388.76
  6. Step 6: Final answer
    x = 11,346,393.13

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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.