Home / 2,775,920.40-4,163,880.60-2,145,286.80

Finding the Fourth Proportional to 2,775,920.40, 4,163,880.60 and 2,145,286.80

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Solution

The fourth proportional to 2,775,920.40, 4,163,880.60 and 2,145,286.80 is: 3,217,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775,920.40 : 4,163,880.60 = 2,145,286.80 : x
  2. Step 2: Convert to fraction form
    2,775,920.40/4,163,880.60 = 2,145,286.80/x
  3. Step 3: Cross multiply
    2,775,920.40x = 4,163,880.60 × 2,145,286.80
  4. Step 4: Simplify right side
    2,775,920.40x = 8,932,718,087,956.08
  5. Step 5: Solve for x
    x = 8,932,718,087,956.08/2,775,920.40
  6. Step 6: Final answer
    x = 3,217,930.20

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1.5x scale

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.