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Finding the Fourth Proportional to 13,231,090,928.20, 19,846,636,392.30 and 13,231,090,928.20

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Solution

The fourth proportional to 13,231,090,928.20, 19,846,636,392.30 and 13,231,090,928.20 is: 19,846,636,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231,090,928.20 : 19,846,636,392.30 = 13,231,090,928.20 : x
  2. Step 2: Convert to fraction form
    13,231,090,928.20/19,846,636,392.30 = 13,231,090,928.20/x
  3. Step 3: Cross multiply
    13,231,090,928.20x = 19,846,636,392.30 × 13,231,090,928.20
  4. Step 4: Simplify right side
    13,231,090,928.20x = 262,592,650,725,444,517,888
  5. Step 5: Solve for x
    x = 262,592,650,725,444,517,888/13,231,090,928.20
  6. Step 6: Final answer
    x = 19,846,636,392.30

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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.