Home / 20,213,266.80-30,319,900.20-11,111,847.60

Finding the Fourth Proportional to 20,213,266.80, 30,319,900.20 and 11,111,847.60

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Solution

The fourth proportional to 20,213,266.80, 30,319,900.20 and 11,111,847.60 is: 16,667,771.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213,266.80 : 30,319,900.20 = 11,111,847.60 : x
  2. Step 2: Convert to fraction form
    20,213,266.80/30,319,900.20 = 11,111,847.60/x
  3. Step 3: Cross multiply
    20,213,266.80x = 30,319,900.20 × 11,111,847.60
  4. Step 4: Simplify right side
    20,213,266.80x = 336,910,110,269,609.50
  5. Step 5: Solve for x
    x = 336,910,110,269,609.50/20,213,266.80
  6. Step 6: Final answer
    x = 16,667,771.40

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1.5x scale

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.