Home / 3,121,390.80-4,680,919.80-2,171,941.20

Finding the Fourth Proportional to 3,121,390.80, 4,680,919.80 and 2,171,941.20

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Solution

The fourth proportional to 3,121,390.80, 4,680,919.80 and 2,171,941.20 is: 3,257,100.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,390.80 : 4,680,919.80 = 2,171,941.20 : x
  2. Step 2: Convert to fraction form
    3,121,390.80/4,680,919.80 = 2,171,941.20/x
  3. Step 3: Cross multiply
    3,121,390.80x = 4,680,919.80 × 2,171,941.20
  4. Step 4: Simplify right side
    3,121,390.80x = 10,166,682,567,515.76
  5. Step 5: Solve for x
    x = 10,166,682,567,515.76/3,121,390.80
  6. Step 6: Final answer
    x = 3,257,100.19

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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.