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Finding the Fourth Proportional to 12,131,861,411.70, 18,197,792,117.55 and 12,131,861,411.70

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Solution

The fourth proportional to 12,131,861,411.70, 18,197,792,117.55 and 12,131,861,411.70 is: 18,197,792,117.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,861,411.70 : 18,197,792,117.55 = 12,131,861,411.70 : x
  2. Step 2: Convert to fraction form
    12,131,861,411.70/18,197,792,117.55 = 12,131,861,411.70/x
  3. Step 3: Cross multiply
    12,131,861,411.70x = 18,197,792,117.55 × 12,131,861,411.70
  4. Step 4: Simplify right side
    12,131,861,411.70x = 220,773,091,969,043,267,584
  5. Step 5: Solve for x
    x = 220,773,091,969,043,267,584/12,131,861,411.70
  6. Step 6: Final answer
    x = 18,197,792,117.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.