Home / 20,164,811.76-27,819,517.98-12,416,416.56

Finding the Fourth Proportional to 20,164,811.76, 27,819,517.98 and 12,416,416.56

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Solution

The fourth proportional to 20,164,811.76, 27,819,517.98 and 12,416,416.56 is: 17,129,776.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164,811.76 : 27,819,517.98 = 12,416,416.56 : x
  2. Step 2: Convert to fraction form
    20,164,811.76/27,819,517.98 = 12,416,416.56/x
  3. Step 3: Cross multiply
    20,164,811.76x = 27,819,517.98 × 12,416,416.56
  4. Step 4: Simplify right side
    20,164,811.76x = 345,418,723,738,089.75
  5. Step 5: Solve for x
    x = 345,418,723,738,089.75/20,164,811.76
  6. Step 6: Final answer
    x = 17,129,776.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.