Home / 20,242,086.40-30,363,129.60-18,289,532.80

Finding the Fourth Proportional to 20,242,086.40, 30,363,129.60 and 18,289,532.80

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Solution

The fourth proportional to 20,242,086.40, 30,363,129.60 and 18,289,532.80 is: 27,434,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242,086.40 : 30,363,129.60 = 18,289,532.80 : x
  2. Step 2: Convert to fraction form
    20,242,086.40/30,363,129.60 = 18,289,532.80/x
  3. Step 3: Cross multiply
    20,242,086.40x = 30,363,129.60 × 18,289,532.80
  4. Step 4: Simplify right side
    20,242,086.40x = 555,327,454,729,850.94
  5. Step 5: Solve for x
    x = 555,327,454,729,850.94/20,242,086.40
  6. Step 6: Final answer
    x = 27,434,299.20

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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.