Home / 13,178,986.20-19,780,289.10-11,383,896.60

Finding the Fourth Proportional to 13,178,986.20, 19,780,289.10 and 11,383,896.60

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Solution

The fourth proportional to 13,178,986.20, 19,780,289.10 and 11,383,896.60 is: 17,086,046.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178,986.20 : 19,780,289.10 = 11,383,896.60 : x
  2. Step 2: Convert to fraction form
    13,178,986.20/19,780,289.10 = 11,383,896.60/x
  3. Step 3: Cross multiply
    13,178,986.20x = 19,780,289.10 × 11,383,896.60
  4. Step 4: Simplify right side
    13,178,986.20x = 225,176,765,832,507.06
  5. Step 5: Solve for x
    x = 225,176,765,832,507.06/13,178,986.20
  6. Step 6: Final answer
    x = 17,086,046.11

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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.