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Finding the Fourth Proportional to 12,132,528,552.80, 18,198,792,829.20 and 12,132,528,552.80

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Solution

The fourth proportional to 12,132,528,552.80, 18,198,792,829.20 and 12,132,528,552.80 is: 18,198,792,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132,528,552.80 : 18,198,792,829.20 = 12,132,528,552.80 : x
  2. Step 2: Convert to fraction form
    12,132,528,552.80/18,198,792,829.20 = 12,132,528,552.80/x
  3. Step 3: Cross multiply
    12,132,528,552.80x = 18,198,792,829.20 × 12,132,528,552.80
  4. Step 4: Simplify right side
    12,132,528,552.80x = 220,797,373,626,760,888,320
  5. Step 5: Solve for x
    x = 220,797,373,626,760,888,320/12,132,528,552.80
  6. Step 6: Final answer
    x = 18,198,792,829.20

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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.