Home / 20,501,452.09-28,292,054.82-11,209,621.81

Finding the Fourth Proportional to 20,501,452.09, 28,292,054.82 and 11,209,621.81

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Solution

The fourth proportional to 20,501,452.09, 28,292,054.82 and 11,209,621.81 is: 15,469,305.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,452.09 : 28,292,054.82 = 11,209,621.81 : x
  2. Step 2: Convert to fraction form
    20,501,452.09/28,292,054.82 = 11,209,621.81/x
  3. Step 3: Cross multiply
    20,501,452.09x = 28,292,054.82 × 11,209,621.81
  4. Step 4: Simplify right side
    20,501,452.09x = 317,143,234,672,371.38
  5. Step 5: Solve for x
    x = 317,143,234,672,371.38/20,501,452.09
  6. Step 6: Final answer
    x = 15,469,305.95

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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.