Home / 20,800,678.46-31,175,463.33-11,683,611.27

Finding the Fourth Proportional to 20,800,678.46, 31,175,463.33 and 11,683,611.27

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Solution

The fourth proportional to 20,800,678.46, 31,175,463.33 and 11,683,611.27 is: 17,511,063.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800,678.46 : 31,175,463.33 = 11,683,611.27 : x
  2. Step 2: Convert to fraction form
    20,800,678.46/31,175,463.33 = 11,683,611.27/x
  3. Step 3: Cross multiply
    20,800,678.46x = 31,175,463.33 × 11,683,611.27
  4. Step 4: Simplify right side
    20,800,678.46x = 364,241,994,709,859.69
  5. Step 5: Solve for x
    x = 364,241,994,709,859.69/20,800,678.46
  6. Step 6: Final answer
    x = 17,511,063.18

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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.