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Finding the Fourth Proportional to 7,227,792,001.40, 10,821,280,667.70 and 7,227,792,001.40

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Solution

The fourth proportional to 7,227,792,001.40, 10,821,280,667.70 and 7,227,792,001.40 is: 10,821,280,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,227,792,001.40 : 10,821,280,667.70 = 7,227,792,001.40 : x
  2. Step 2: Convert to fraction form
    7,227,792,001.40/10,821,280,667.70 = 7,227,792,001.40/x
  3. Step 3: Cross multiply
    7,227,792,001.40x = 10,821,280,667.70 × 7,227,792,001.40
  4. Step 4: Simplify right side
    7,227,792,001.40x = 78,213,965,854,906,515,456
  5. Step 5: Solve for x
    x = 78,213,965,854,906,515,456/7,227,792,001.40
  6. Step 6: Final answer
    x = 10,821,280,667.70

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1.5x scale

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.