Home / 18,092,014.20-27,138,021.30-12,990,180.60

Finding the Fourth Proportional to 18,092,014.20, 27,138,021.30 and 12,990,180.60

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Solution

The fourth proportional to 18,092,014.20, 27,138,021.30 and 12,990,180.60 is: 19,485,270.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,092,014.20 : 27,138,021.30 = 12,990,180.60 : x
  2. Step 2: Convert to fraction form
    18,092,014.20/27,138,021.30 = 12,990,180.60/x
  3. Step 3: Cross multiply
    18,092,014.20x = 27,138,021.30 × 12,990,180.60
  4. Step 4: Simplify right side
    18,092,014.20x = 352,527,797,813,646.75
  5. Step 5: Solve for x
    x = 352,527,797,813,646.75/18,092,014.20
  6. Step 6: Final answer
    x = 19,485,270.90

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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.