Home / 52,489,520.82-78,769,422.99-21,784,125.78

Finding the Fourth Proportional to 52,489,520.82, 78,769,422.99 and 21,784,125.78

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Solution

The fourth proportional to 52,489,520.82, 78,769,422.99 and 21,784,125.78 is: 32,690,773.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,489,520.82 : 78,769,422.99 = 21,784,125.78 : x
  2. Step 2: Convert to fraction form
    52,489,520.82/78,769,422.99 = 21,784,125.78/x
  3. Step 3: Cross multiply
    52,489,520.82x = 78,769,422.99 × 21,784,125.78
  4. Step 4: Simplify right side
    52,489,520.82x = 1,715,923,018,032,183.75
  5. Step 5: Solve for x
    x = 1,715,923,018,032,183.75/52,489,520.82
  6. Step 6: Final answer
    x = 32,690,773.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.