Home / 12,268,997.78-18,427,411.08-9,996,201.77

Finding the Fourth Proportional to 12,268,997.78, 18,427,411.08 and 9,996,201.77

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Solution

The fourth proportional to 12,268,997.78, 18,427,411.08 and 9,996,201.77 is: 15,013,786.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268,997.78 : 18,427,411.08 = 9,996,201.77 : x
  2. Step 2: Convert to fraction form
    12,268,997.78/18,427,411.08 = 9,996,201.77/x
  3. Step 3: Cross multiply
    12,268,997.78x = 18,427,411.08 × 9,996,201.77
  4. Step 4: Simplify right side
    12,268,997.78x = 184,204,119,162,276.56
  5. Step 5: Solve for x
    x = 184,204,119,162,276.56/12,268,997.78
  6. Step 6: Final answer
    x = 15,013,786.99

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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.