Home / 18,390,781.86-25,377,369.68-11,325,251.90

Finding the Fourth Proportional to 18,390,781.86, 25,377,369.68 and 11,325,251.90

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Solution

The fourth proportional to 18,390,781.86, 25,377,369.68 and 11,325,251.90 is: 15,627,671.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390,781.86 : 25,377,369.68 = 11,325,251.90 : x
  2. Step 2: Convert to fraction form
    18,390,781.86/25,377,369.68 = 11,325,251.90/x
  3. Step 3: Cross multiply
    18,390,781.86x = 25,377,369.68 × 11,325,251.90
  4. Step 4: Simplify right side
    18,390,781.86x = 287,405,104,185,422.38
  5. Step 5: Solve for x
    x = 287,405,104,185,422.38/18,390,781.86
  6. Step 6: Final answer
    x = 15,627,671.86

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1.5x scale

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.