Home / 20,305,811.40-30,458,717.10-19,410,016.20

Finding the Fourth Proportional to 20,305,811.40, 30,458,717.10 and 19,410,016.20

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Solution

The fourth proportional to 20,305,811.40, 30,458,717.10 and 19,410,016.20 is: 29,115,024.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,305,811.40 : 30,458,717.10 = 19,410,016.20 : x
  2. Step 2: Convert to fraction form
    20,305,811.40/30,458,717.10 = 19,410,016.20/x
  3. Step 3: Cross multiply
    20,305,811.40x = 30,458,717.10 × 19,410,016.20
  4. Step 4: Simplify right side
    20,305,811.40x = 591,204,192,342,217
  5. Step 5: Solve for x
    x = 591,204,192,342,217/20,305,811.40
  6. Step 6: Final answer
    x = 29,115,024.30

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Similar ratio
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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.