Home / 18,409,921.75-27,615,021-8,172,029.20

Finding the Fourth Proportional to 18,409,921.75, 27,615,021 and 8,172,029.20

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Solution

The fourth proportional to 18,409,921.75, 27,615,021 and 8,172,029.20 is: 12,258,105.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,409,921.75 : 27,615,021 = 8,172,029.20 : x
  2. Step 2: Convert to fraction form
    18,409,921.75/27,615,021 = 8,172,029.20/x
  3. Step 3: Cross multiply
    18,409,921.75x = 27,615,021 × 8,172,029.20
  4. Step 4: Simplify right side
    18,409,921.75x = 225,670,757,970,613.22
  5. Step 5: Solve for x
    x = 225,670,757,970,613.22/18,409,921.75
  6. Step 6: Final answer
    x = 12,258,105.22

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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.