Home / 21,383,958.12-29,508,037.60-12,091,072.56

Finding the Fourth Proportional to 21,383,958.12, 29,508,037.60 and 12,091,072.56

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Solution

The fourth proportional to 21,383,958.12, 29,508,037.60 and 12,091,072.56 is: 16,684,648.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383,958.12 : 29,508,037.60 = 12,091,072.56 : x
  2. Step 2: Convert to fraction form
    21,383,958.12/29,508,037.60 = 12,091,072.56/x
  3. Step 3: Cross multiply
    21,383,958.12x = 29,508,037.60 × 12,091,072.56
  4. Step 4: Simplify right side
    21,383,958.12x = 356,783,823,724,808.31
  5. Step 5: Solve for x
    x = 356,783,823,724,808.31/21,383,958.12
  6. Step 6: Final answer
    x = 16,684,648.45

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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.