Home / 18,409,919.75-27,615,018-8,172,027.20

Finding the Fourth Proportional to 18,409,919.75, 27,615,018 and 8,172,027.20

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Solution

The fourth proportional to 18,409,919.75, 27,615,018 and 8,172,027.20 is: 12,258,102.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,409,919.75 : 27,615,018 = 8,172,027.20 : x
  2. Step 2: Convert to fraction form
    18,409,919.75/27,615,018 = 8,172,027.20/x
  3. Step 3: Cross multiply
    18,409,919.75x = 27,615,018 × 8,172,027.20
  4. Step 4: Simplify right side
    18,409,919.75x = 225,670,678,086,414.53
  5. Step 5: Solve for x
    x = 225,670,678,086,414.53/18,409,919.75
  6. Step 6: Final answer
    x = 12,258,102.22

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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.