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Finding the Fourth Proportional to 78,393,744,019.60, 117,590,616,029.40 and 78,393,744,019.60

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Solution

The fourth proportional to 78,393,744,019.60, 117,590,616,029.40 and 78,393,744,019.60 is: 117,590,616,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,393,744,019.60 : 117,590,616,029.40 = 78,393,744,019.60 : x
  2. Step 2: Convert to fraction form
    78,393,744,019.60/117,590,616,029.40 = 78,393,744,019.60/x
  3. Step 3: Cross multiply
    78,393,744,019.60x = 117,590,616,029.40 × 78,393,744,019.60
  4. Step 4: Simplify right side
    78,393,744,019.60x = 9,218,368,652,115,856,850,944
  5. Step 5: Solve for x
    x = 9,218,368,652,115,856,850,944/78,393,744,019.60
  6. Step 6: Final answer
    x = 117,590,616,029.40

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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.