Home / 20,723,330-28,598,195.40-12,138,626

Finding the Fourth Proportional to 20,723,330, 28,598,195.40 and 12,138,626

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Solution

The fourth proportional to 20,723,330, 28,598,195.40 and 12,138,626 is: 16,751,303.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723,330 : 28,598,195.40 = 12,138,626 : x
  2. Step 2: Convert to fraction form
    20,723,330/28,598,195.40 = 12,138,626/x
  3. Step 3: Cross multiply
    20,723,330x = 28,598,195.40 × 12,138,626
  4. Step 4: Simplify right side
    20,723,330x = 347,142,798,235,520.38
  5. Step 5: Solve for x
    x = 347,142,798,235,520.38/20,723,330
  6. Step 6: Final answer
    x = 16,751,303.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.