Home / 38,639,132.80-57,958,699.20-20,723,228.80

Finding the Fourth Proportional to 38,639,132.80, 57,958,699.20 and 20,723,228.80

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Solution

The fourth proportional to 38,639,132.80, 57,958,699.20 and 20,723,228.80 is: 31,084,843.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639,132.80 : 57,958,699.20 = 20,723,228.80 : x
  2. Step 2: Convert to fraction form
    38,639,132.80/57,958,699.20 = 20,723,228.80/x
  3. Step 3: Cross multiply
    38,639,132.80x = 57,958,699.20 × 20,723,228.80
  4. Step 4: Simplify right side
    38,639,132.80x = 1,201,091,384,471,977
  5. Step 5: Solve for x
    x = 1,201,091,384,471,977/38,639,132.80
  6. Step 6: Final answer
    x = 31,084,843.20

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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.