Home / 38,839,819.42-53,598,687.09-21,436,164.58

Finding the Fourth Proportional to 38,839,819.42, 53,598,687.09 and 21,436,164.58

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Solution

The fourth proportional to 38,839,819.42, 53,598,687.09 and 21,436,164.58 is: 29,581,761.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,839,819.42 : 53,598,687.09 = 21,436,164.58 : x
  2. Step 2: Convert to fraction form
    38,839,819.42/53,598,687.09 = 21,436,164.58/x
  3. Step 3: Cross multiply
    38,839,819.42x = 53,598,687.09 × 21,436,164.58
  4. Step 4: Simplify right side
    38,839,819.42x = 1,148,950,277,770,049.50
  5. Step 5: Solve for x
    x = 1,148,950,277,770,049.50/38,839,819.42
  6. Step 6: Final answer
    x = 29,581,761.58

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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.