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Finding the Fourth Proportional to 8,657,619,293.40, 12,986,428,940.10 and 8,657,619,293.40

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Solution

The fourth proportional to 8,657,619,293.40, 12,986,428,940.10 and 8,657,619,293.40 is: 12,986,428,940.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,657,619,293.40 : 12,986,428,940.10 = 8,657,619,293.40 : x
  2. Step 2: Convert to fraction form
    8,657,619,293.40/12,986,428,940.10 = 8,657,619,293.40/x
  3. Step 3: Cross multiply
    8,657,619,293.40x = 12,986,428,940.10 × 8,657,619,293.40
  4. Step 4: Simplify right side
    8,657,619,293.40x = 112,431,557,744,177,872,896
  5. Step 5: Solve for x
    x = 112,431,557,744,177,872,896/8,657,619,293.40
  6. Step 6: Final answer
    x = 12,986,428,940.10

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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.