Home / 20,414,469.40-30,621,704.10-8,289,741.40

Finding the Fourth Proportional to 20,414,469.40, 30,621,704.10 and 8,289,741.40

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Solution

The fourth proportional to 20,414,469.40, 30,621,704.10 and 8,289,741.40 is: 12,434,612.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414,469.40 : 30,621,704.10 = 8,289,741.40 : x
  2. Step 2: Convert to fraction form
    20,414,469.40/30,621,704.10 = 8,289,741.40/x
  3. Step 3: Cross multiply
    20,414,469.40x = 30,621,704.10 × 8,289,741.40
  4. Step 4: Simplify right side
    20,414,469.40x = 253,846,008,216,319.75
  5. Step 5: Solve for x
    x = 253,846,008,216,319.75/20,414,469.40
  6. Step 6: Final answer
    x = 12,434,612.10

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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.