Home / 518,412,744.82-777,619,865.65-211,704,857.70

Finding the Fourth Proportional to 518,412,744.82, 777,619,865.65 and 211,704,857.70

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Solution

The fourth proportional to 518,412,744.82, 777,619,865.65 and 211,704,857.70 is: 317,557,592.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,412,744.82 : 777,619,865.65 = 211,704,857.70 : x
  2. Step 2: Convert to fraction form
    518,412,744.82/777,619,865.65 = 211,704,857.70/x
  3. Step 3: Cross multiply
    518,412,744.82x = 777,619,865.65 × 211,704,857.70
  4. Step 4: Simplify right side
    518,412,744.82x = 164,625,902,998,479,904
  5. Step 5: Solve for x
    x = 164,625,902,998,479,904/518,412,744.82
  6. Step 6: Final answer
    x = 317,557,592.18

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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.