Home / 12,781,451,879.80-19,172,177,819.70-11,393,753,140.60

Finding the Fourth Proportional to 12,781,451,879.80, 19,172,177,819.70 and 11,393,753,140.60

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Solution

The fourth proportional to 12,781,451,879.80, 19,172,177,819.70 and 11,393,753,140.60 is: 17,090,629,710.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,451,879.80 : 19,172,177,819.70 = 11,393,753,140.60 : x
  2. Step 2: Convert to fraction form
    12,781,451,879.80/19,172,177,819.70 = 11,393,753,140.60/x
  3. Step 3: Cross multiply
    12,781,451,879.80x = 19,172,177,819.70 × 11,393,753,140.60
  4. Step 4: Simplify right side
    12,781,451,879.80x = 218,443,061,245,348,544,512
  5. Step 5: Solve for x
    x = 218,443,061,245,348,544,512/12,781,451,879.80
  6. Step 6: Final answer
    x = 17,090,629,710.90

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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.