Home / 18,520,911.72-25,544,592.72-11,171,082.60

Finding the Fourth Proportional to 18,520,911.72, 25,544,592.72 and 11,171,082.60

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Solution

The fourth proportional to 18,520,911.72, 25,544,592.72 and 11,171,082.60 is: 15,407,489.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520,911.72 : 25,544,592.72 = 11,171,082.60 : x
  2. Step 2: Convert to fraction form
    18,520,911.72/25,544,592.72 = 11,171,082.60/x
  3. Step 3: Cross multiply
    18,520,911.72x = 25,544,592.72 × 11,171,082.60
  4. Step 4: Simplify right side
    18,520,911.72x = 285,360,755,258,478.62
  5. Step 5: Solve for x
    x = 285,360,755,258,478.62/18,520,911.72
  6. Step 6: Final answer
    x = 15,407,489.63

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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.