Home / 482,443,728.73-721,839,408.27-285,812,676.68

Finding the Fourth Proportional to 482,443,728.73, 721,839,408.27 and 285,812,676.68

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Solution

The fourth proportional to 482,443,728.73, 721,839,408.27 and 285,812,676.68 is: 427,637,133.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,443,728.73 : 721,839,408.27 = 285,812,676.68 : x
  2. Step 2: Convert to fraction form
    482,443,728.73/721,839,408.27 = 285,812,676.68/x
  3. Step 3: Cross multiply
    482,443,728.73x = 721,839,408.27 × 285,812,676.68
  4. Step 4: Simplify right side
    482,443,728.73x = 206,310,853,408,951,424
  5. Step 5: Solve for x
    x = 206,310,853,408,951,424/482,443,728.73
  6. Step 6: Final answer
    x = 427,637,133.87

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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.