Home / 20,115,213.18-27,758,994.03-10,947,921.54

Finding the Fourth Proportional to 20,115,213.18, 27,758,994.03 and 10,947,921.54

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Solution

The fourth proportional to 20,115,213.18, 27,758,994.03 and 10,947,921.54 is: 15,108,131.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,115,213.18 : 27,758,994.03 = 10,947,921.54 : x
  2. Step 2: Convert to fraction form
    20,115,213.18/27,758,994.03 = 10,947,921.54/x
  3. Step 3: Cross multiply
    20,115,213.18x = 27,758,994.03 × 10,947,921.54
  4. Step 4: Simplify right side
    20,115,213.18x = 303,903,288,669,768.38
  5. Step 5: Solve for x
    x = 303,903,288,669,768.38/20,115,213.18
  6. Step 6: Final answer
    x = 15,108,131.64

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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.