Home / 20,910,559.11-31,353,659.76-8,116,117.03

Finding the Fourth Proportional to 20,910,559.11, 31,353,659.76 and 8,116,117.03

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Solution

The fourth proportional to 20,910,559.11, 31,353,659.76 and 8,116,117.03 is: 12,169,448.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,910,559.11 : 31,353,659.76 = 8,116,117.03 : x
  2. Step 2: Convert to fraction form
    20,910,559.11/31,353,659.76 = 8,116,117.03/x
  3. Step 3: Cross multiply
    20,910,559.11x = 31,353,659.76 × 8,116,117.03
  4. Step 4: Simplify right side
    20,910,559.11x = 254,469,971,930,961.72
  5. Step 5: Solve for x
    x = 254,469,971,930,961.72/20,910,559.11
  6. Step 6: Final answer
    x = 12,169,448.49

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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.