Home / 11,028,681.60-16,543,022.40-7,981,753.20

Finding the Fourth Proportional to 11,028,681.60, 16,543,022.40 and 7,981,753.20

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Solution

The fourth proportional to 11,028,681.60, 16,543,022.40 and 7,981,753.20 is: 11,972,629.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,028,681.60 : 16,543,022.40 = 7,981,753.20 : x
  2. Step 2: Convert to fraction form
    11,028,681.60/16,543,022.40 = 7,981,753.20/x
  3. Step 3: Cross multiply
    11,028,681.60x = 16,543,022.40 × 7,981,753.20
  4. Step 4: Simplify right side
    11,028,681.60x = 132,042,321,978,871.69
  5. Step 5: Solve for x
    x = 132,042,321,978,871.69/11,028,681.60
  6. Step 6: Final answer
    x = 11,972,629.80

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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.