Home / 12,462,914.20-18,699,620.10-6,787,211.80

Finding the Fourth Proportional to 12,462,914.20, 18,699,620.10 and 6,787,211.80

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Solution

The fourth proportional to 12,462,914.20, 18,699,620.10 and 6,787,211.80 is: 10,183,676.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462,914.20 : 18,699,620.10 = 6,787,211.80 : x
  2. Step 2: Convert to fraction form
    12,462,914.20/18,699,620.10 = 6,787,211.80/x
  3. Step 3: Cross multiply
    12,462,914.20x = 18,699,620.10 × 6,787,211.80
  4. Step 4: Simplify right side
    12,462,914.20x = 126,918,282,198,237.19
  5. Step 5: Solve for x
    x = 126,918,282,198,237.19/12,462,914.20
  6. Step 6: Final answer
    x = 10,183,676.16

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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.