Home / 12,462,563.20-18,699,093.60-6,786,860.80

Finding the Fourth Proportional to 12,462,563.20, 18,699,093.60 and 6,786,860.80

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Solution

The fourth proportional to 12,462,563.20, 18,699,093.60 and 6,786,860.80 is: 10,183,149.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462,563.20 : 18,699,093.60 = 6,786,860.80 : x
  2. Step 2: Convert to fraction form
    12,462,563.20/18,699,093.60 = 6,786,860.80/x
  3. Step 3: Cross multiply
    12,462,563.20x = 18,699,093.60 × 6,786,860.80
  4. Step 4: Simplify right side
    12,462,563.20x = 126,908,145,349,370.89
  5. Step 5: Solve for x
    x = 126,908,145,349,370.89/12,462,563.20
  6. Step 6: Final answer
    x = 10,183,149.59

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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.