Home / 20,412,067.80-30,618,101.70-12,334,164.60

Finding the Fourth Proportional to 20,412,067.80, 30,618,101.70 and 12,334,164.60

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Solution

The fourth proportional to 20,412,067.80, 30,618,101.70 and 12,334,164.60 is: 18,501,246.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412,067.80 : 30,618,101.70 = 12,334,164.60 : x
  2. Step 2: Convert to fraction form
    20,412,067.80/30,618,101.70 = 12,334,164.60/x
  3. Step 3: Cross multiply
    20,412,067.80x = 30,618,101.70 × 12,334,164.60
  4. Step 4: Simplify right side
    20,412,067.80x = 377,648,706,107,339.81
  5. Step 5: Solve for x
    x = 377,648,706,107,339.81/20,412,067.80
  6. Step 6: Final answer
    x = 18,501,246.90

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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.