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Finding the Fourth Proportional to 11,991,409.10, 17,978,249.01 and 6,225,864.74

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Solution

The fourth proportional to 11,991,409.10, 17,978,249.01 and 6,225,864.74 is: 9,334,194.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,991,409.10 : 17,978,249.01 = 6,225,864.74 : x
  2. Step 2: Convert to fraction form
    11,991,409.10/17,978,249.01 = 6,225,864.74/x
  3. Step 3: Cross multiply
    11,991,409.10x = 17,978,249.01 × 6,225,864.74
  4. Step 4: Simplify right side
    11,991,409.10x = 111,930,146,598,298.92
  5. Step 5: Solve for x
    x = 111,930,146,598,298.92/11,991,409.10
  6. Step 6: Final answer
    x = 9,334,194.64

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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.