Home / 1,328,542,968.80-1,992,814,453.20-345,967,608.80

Finding the Fourth Proportional to 1,328,542,968.80, 1,992,814,453.20 and 345,967,608.80

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Solution

The fourth proportional to 1,328,542,968.80, 1,992,814,453.20 and 345,967,608.80 is: 518,951,413.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,542,968.80 : 1,992,814,453.20 = 345,967,608.80 : x
  2. Step 2: Convert to fraction form
    1,328,542,968.80/1,992,814,453.20 = 345,967,608.80/x
  3. Step 3: Cross multiply
    1,328,542,968.80x = 1,992,814,453.20 × 345,967,608.80
  4. Step 4: Simplify right side
    1,328,542,968.80x = 689,449,251,155,683,584
  5. Step 5: Solve for x
    x = 689,449,251,155,683,584/1,328,542,968.80
  6. Step 6: Final answer
    x = 518,951,413.20

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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.