Home / 12,781,451,874.80-19,172,177,812.20-11,393,753,135.60

Finding the Fourth Proportional to 12,781,451,874.80, 19,172,177,812.20 and 11,393,753,135.60

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Solution

The fourth proportional to 12,781,451,874.80, 19,172,177,812.20 and 11,393,753,135.60 is: 17,090,629,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,451,874.80 : 19,172,177,812.20 = 11,393,753,135.60 : x
  2. Step 2: Convert to fraction form
    12,781,451,874.80/19,172,177,812.20 = 11,393,753,135.60/x
  3. Step 3: Cross multiply
    12,781,451,874.80x = 19,172,177,812.20 × 11,393,753,135.60
  4. Step 4: Simplify right side
    12,781,451,874.80x = 218,443,061,064,034,516,992
  5. Step 5: Solve for x
    x = 218,443,061,064,034,516,992/12,781,451,874.80
  6. Step 6: Final answer
    x = 17,090,629,703.40

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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.