Home / 198,942,251,212.80-298,413,376,819.20-81,102,184,243.20

Finding the Fourth Proportional to 198,942,251,212.80, 298,413,376,819.20 and 81,102,184,243.20

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Solution

The fourth proportional to 198,942,251,212.80, 298,413,376,819.20 and 81,102,184,243.20 is: 121,653,276,364.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,942,251,212.80 : 298,413,376,819.20 = 81,102,184,243.20 : x
  2. Step 2: Convert to fraction form
    198,942,251,212.80/298,413,376,819.20 = 81,102,184,243.20/x
  3. Step 3: Cross multiply
    198,942,251,212.80x = 298,413,376,819.20 × 81,102,184,243.20
  4. Step 4: Simplify right side
    198,942,251,212.80x = 24,201,976,667,426,227,486,720
  5. Step 5: Solve for x
    x = 24,201,976,667,426,227,486,720/198,942,251,212.80
  6. Step 6: Final answer
    x = 121,653,276,364.80

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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.