Home / 11,028,621.60-16,542,932.40-7,981,693.20

Finding the Fourth Proportional to 11,028,621.60, 16,542,932.40 and 7,981,693.20

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Solution

The fourth proportional to 11,028,621.60, 16,542,932.40 and 7,981,693.20 is: 11,972,539.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,028,621.60 : 16,542,932.40 = 7,981,693.20 : x
  2. Step 2: Convert to fraction form
    11,028,621.60/16,542,932.40 = 7,981,693.20/x
  3. Step 3: Cross multiply
    11,028,621.60x = 16,542,932.40 × 7,981,693.20
  4. Step 4: Simplify right side
    11,028,621.60x = 132,040,611,045,139.69
  5. Step 5: Solve for x
    x = 132,040,611,045,139.69/11,028,621.60
  6. Step 6: Final answer
    x = 11,972,539.80

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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.