Home / 12,462,783.20-18,699,423.60-6,787,080.80

Finding the Fourth Proportional to 12,462,783.20, 18,699,423.60 and 6,787,080.80

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Solution

The fourth proportional to 12,462,783.20, 18,699,423.60 and 6,787,080.80 is: 10,183,479.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462,783.20 : 18,699,423.60 = 6,787,080.80 : x
  2. Step 2: Convert to fraction form
    12,462,783.20/18,699,423.60 = 6,787,080.80/x
  3. Step 3: Cross multiply
    12,462,783.20x = 18,699,423.60 × 6,787,080.80
  4. Step 4: Simplify right side
    12,462,783.20x = 126,914,498,886,626.89
  5. Step 5: Solve for x
    x = 126,914,498,886,626.89/12,462,783.20
  6. Step 6: Final answer
    x = 10,183,479.63

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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.