Home / 20,021,811.26-27,630,316.10-11,762,221.68

Finding the Fourth Proportional to 20,021,811.26, 27,630,316.10 and 11,762,221.68

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Solution

The fourth proportional to 20,021,811.26, 27,630,316.10 and 11,762,221.68 is: 16,231,993.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021,811.26 : 27,630,316.10 = 11,762,221.68 : x
  2. Step 2: Convert to fraction form
    20,021,811.26/27,630,316.10 = 11,762,221.68/x
  3. Step 3: Cross multiply
    20,021,811.26x = 27,630,316.10 × 11,762,221.68
  4. Step 4: Simplify right side
    20,021,811.26x = 324,993,903,086,078.56
  5. Step 5: Solve for x
    x = 324,993,903,086,078.56/20,021,811.26
  6. Step 6: Final answer
    x = 16,231,993.15

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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.