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Finding the Fourth Proportional to 13,203,669,943.45, 19,805,504,915.18 and 13,203,669,943.45

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Solution

The fourth proportional to 13,203,669,943.45, 19,805,504,915.18 and 13,203,669,943.45 is: 19,805,504,915.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203,669,943.45 : 19,805,504,915.18 = 13,203,669,943.45 : x
  2. Step 2: Convert to fraction form
    13,203,669,943.45/19,805,504,915.18 = 13,203,669,943.45/x
  3. Step 3: Cross multiply
    13,203,669,943.45x = 19,805,504,915.18 × 13,203,669,943.45
  4. Step 4: Simplify right side
    13,203,669,943.45x = 261,505,349,963,413,422,080
  5. Step 5: Solve for x
    x = 261,505,349,963,413,422,080/13,203,669,943.45
  6. Step 6: Final answer
    x = 19,805,504,915.18

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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.