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Finding the Fourth Proportional to 12,757,747,442.40, 19,136,621,163.60 and 12,757,747,442.40

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Solution

The fourth proportional to 12,757,747,442.40, 19,136,621,163.60 and 12,757,747,442.40 is: 19,136,621,163.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,757,747,442.40 : 19,136,621,163.60 = 12,757,747,442.40 : x
  2. Step 2: Convert to fraction form
    12,757,747,442.40/19,136,621,163.60 = 12,757,747,442.40/x
  3. Step 3: Cross multiply
    12,757,747,442.40x = 19,136,621,163.60 × 12,757,747,442.40
  4. Step 4: Simplify right side
    12,757,747,442.40x = 244,140,179,706,095,599,616
  5. Step 5: Solve for x
    x = 244,140,179,706,095,599,616/12,757,747,442.40
  6. Step 6: Final answer
    x = 19,136,621,163.60

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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.