Home / 20,143,826.20-30,215,739.30-6,678,904.60

Finding the Fourth Proportional to 20,143,826.20, 30,215,739.30 and 6,678,904.60

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Solution

The fourth proportional to 20,143,826.20, 30,215,739.30 and 6,678,904.60 is: 10,018,356.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143,826.20 : 30,215,739.30 = 6,678,904.60 : x
  2. Step 2: Convert to fraction form
    20,143,826.20/30,215,739.30 = 6,678,904.60/x
  3. Step 3: Cross multiply
    20,143,826.20x = 30,215,739.30 × 6,678,904.60
  4. Step 4: Simplify right side
    20,143,826.20x = 201,808,040,203,170.78
  5. Step 5: Solve for x
    x = 201,808,040,203,170.78/20,143,826.20
  6. Step 6: Final answer
    x = 10,018,356.90

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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.