Home / 12,481,933.20-18,722,899.80-8,230,405.20

Finding the Fourth Proportional to 12,481,933.20, 18,722,899.80 and 8,230,405.20

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Solution

The fourth proportional to 12,481,933.20, 18,722,899.80 and 8,230,405.20 is: 12,345,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,933.20 : 18,722,899.80 = 8,230,405.20 : x
  2. Step 2: Convert to fraction form
    12,481,933.20/18,722,899.80 = 8,230,405.20/x
  3. Step 3: Cross multiply
    12,481,933.20x = 18,722,899.80 × 8,230,405.20
  4. Step 4: Simplify right side
    12,481,933.20x = 154,097,051,872,998.97
  5. Step 5: Solve for x
    x = 154,097,051,872,998.97/12,481,933.20
  6. Step 6: Final answer
    x = 12,345,607.80

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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.