Home / 658,830,013.76-987,907,257.92-348,104,728

Finding the Fourth Proportional to 658,830,013.76, 987,907,257.92 and 348,104,728

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Solution

The fourth proportional to 658,830,013.76, 987,907,257.92 and 348,104,728 is: 521,978,628.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,830,013.76 : 987,907,257.92 = 348,104,728 : x
  2. Step 2: Convert to fraction form
    658,830,013.76/987,907,257.92 = 348,104,728/x
  3. Step 3: Cross multiply
    658,830,013.76x = 987,907,257.92 × 348,104,728
  4. Step 4: Simplify right side
    658,830,013.76x = 343,895,187,307,467,456
  5. Step 5: Solve for x
    x = 343,895,187,307,467,456/658,830,013.76
  6. Step 6: Final answer
    x = 521,978,628.97

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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.