Home / 13,147,660.80-19,721,491.20-8,612,697.60

Finding the Fourth Proportional to 13,147,660.80, 19,721,491.20 and 8,612,697.60

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Solution

The fourth proportional to 13,147,660.80, 19,721,491.20 and 8,612,697.60 is: 12,919,046.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147,660.80 : 19,721,491.20 = 8,612,697.60 : x
  2. Step 2: Convert to fraction form
    13,147,660.80/19,721,491.20 = 8,612,697.60/x
  3. Step 3: Cross multiply
    13,147,660.80x = 19,721,491.20 × 8,612,697.60
  4. Step 4: Simplify right side
    13,147,660.80x = 169,855,239,926,661.09
  5. Step 5: Solve for x
    x = 169,855,239,926,661.09/13,147,660.80
  6. Step 6: Final answer
    x = 12,919,046.40

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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.