Home / 427,985,229.14-641,775,466.01-165,792,578.84

Finding the Fourth Proportional to 427,985,229.14, 641,775,466.01 and 165,792,578.84

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Solution

The fourth proportional to 427,985,229.14, 641,775,466.01 and 165,792,578.84 is: 248,610,471.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,985,229.14 : 641,775,466.01 = 165,792,578.84 : x
  2. Step 2: Convert to fraction form
    427,985,229.14/641,775,466.01 = 165,792,578.84/x
  3. Step 3: Cross multiply
    427,985,229.14x = 641,775,466.01 × 165,792,578.84
  4. Step 4: Simplify right side
    427,985,229.14x = 106,401,609,542,002,832
  5. Step 5: Solve for x
    x = 106,401,609,542,002,832/427,985,229.14
  6. Step 6: Final answer
    x = 248,610,471.34

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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.