Home / 20,955,086.55-31,432,629.83-18,435,662.55

Finding the Fourth Proportional to 20,955,086.55, 31,432,629.83 and 18,435,662.55

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Solution

The fourth proportional to 20,955,086.55, 31,432,629.83 and 18,435,662.55 is: 27,653,493.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,955,086.55 : 31,432,629.83 = 18,435,662.55 : x
  2. Step 2: Convert to fraction form
    20,955,086.55/31,432,629.83 = 18,435,662.55/x
  3. Step 3: Cross multiply
    20,955,086.55x = 31,432,629.83 × 18,435,662.55
  4. Step 4: Simplify right side
    20,955,086.55x = 579,481,356,512,765.62
  5. Step 5: Solve for x
    x = 579,481,356,512,765.62/20,955,086.55
  6. Step 6: Final answer
    x = 27,653,493.83

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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.