Home / 15,510,489.87-21,404,057.85-8,634,972.54

Finding the Fourth Proportional to 15,510,489.87, 21,404,057.85 and 8,634,972.54

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Solution

The fourth proportional to 15,510,489.87, 21,404,057.85 and 8,634,972.54 is: 11,916,029.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,510,489.87 : 21,404,057.85 = 8,634,972.54 : x
  2. Step 2: Convert to fraction form
    15,510,489.87/21,404,057.85 = 8,634,972.54/x
  3. Step 3: Cross multiply
    15,510,489.87x = 21,404,057.85 × 8,634,972.54
  4. Step 4: Simplify right side
    15,510,489.87x = 184,823,451,779,321.44
  5. Step 5: Solve for x
    x = 184,823,451,779,321.44/15,510,489.87
  6. Step 6: Final answer
    x = 11,916,029.30

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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.