Home / 20,800,708-31,175,507.58-11,683,640.86

Finding the Fourth Proportional to 20,800,708, 31,175,507.58 and 11,683,640.86

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Solution

The fourth proportional to 20,800,708, 31,175,507.58 and 11,683,640.86 is: 17,511,107.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800,708 : 31,175,507.58 = 11,683,640.86 : x
  2. Step 2: Convert to fraction form
    20,800,708/31,175,507.58 = 11,683,640.86/x
  3. Step 3: Cross multiply
    20,800,708x = 31,175,507.58 × 11,683,640.86
  4. Step 4: Simplify right side
    20,800,708x = 364,243,434,192,927.69
  5. Step 5: Solve for x
    x = 364,243,434,192,927.69/20,800,708
  6. Step 6: Final answer
    x = 17,511,107.52

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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.