Home / 31,448,469.88-47,172,968.82-8,731,138.68

Finding the Fourth Proportional to 31,448,469.88, 47,172,968.82 and 8,731,138.68

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Solution

The fourth proportional to 31,448,469.88, 47,172,968.82 and 8,731,138.68 is: 13,096,781.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,448,469.88 : 47,172,968.82 = 8,731,138.68 : x
  2. Step 2: Convert to fraction form
    31,448,469.88/47,172,968.82 = 8,731,138.68/x
  3. Step 3: Cross multiply
    31,448,469.88x = 47,172,968.82 × 8,731,138.68
  4. Step 4: Simplify right side
    31,448,469.88x = 411,873,732,714,735.94
  5. Step 5: Solve for x
    x = 411,873,732,714,735.94/31,448,469.88
  6. Step 6: Final answer
    x = 13,096,781.32

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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.