Home / 3,313,209.40-4,969,814.10-2,118,815.80

Finding the Fourth Proportional to 3,313,209.40, 4,969,814.10 and 2,118,815.80

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Solution

The fourth proportional to 3,313,209.40, 4,969,814.10 and 2,118,815.80 is: 3,178,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313,209.40 : 4,969,814.10 = 2,118,815.80 : x
  2. Step 2: Convert to fraction form
    3,313,209.40/4,969,814.10 = 2,118,815.80/x
  3. Step 3: Cross multiply
    3,313,209.40x = 4,969,814.10 × 2,118,815.80
  4. Step 4: Simplify right side
    3,313,209.40x = 10,530,120,638,142.78
  5. Step 5: Solve for x
    x = 10,530,120,638,142.78/3,313,209.40
  6. Step 6: Final answer
    x = 3,178,223.70

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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.