Home / 2,780,685.20-4,171,027.80-2,150,829.20

Finding the Fourth Proportional to 2,780,685.20, 4,171,027.80 and 2,150,829.20

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Solution

The fourth proportional to 2,780,685.20, 4,171,027.80 and 2,150,829.20 is: 3,226,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780,685.20 : 4,171,027.80 = 2,150,829.20 : x
  2. Step 2: Convert to fraction form
    2,780,685.20/4,171,027.80 = 2,150,829.20/x
  3. Step 3: Cross multiply
    2,780,685.20x = 4,171,027.80 × 2,150,829.20
  4. Step 4: Simplify right side
    2,780,685.20x = 8,971,168,386,251.76
  5. Step 5: Solve for x
    x = 8,971,168,386,251.76/2,780,685.20
  6. Step 6: Final answer
    x = 3,226,243.80

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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.