Home / 821,960,615.44-1,232,940,899.33-379,172,288.38

Finding the Fourth Proportional to 821,960,615.44, 1,232,940,899.33 and 379,172,288.38

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Solution

The fourth proportional to 821,960,615.44, 1,232,940,899.33 and 379,172,288.38 is: 568,758,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,960,615.44 : 1,232,940,899.33 = 379,172,288.38 : x
  2. Step 2: Convert to fraction form
    821,960,615.44/1,232,940,899.33 = 379,172,288.38/x
  3. Step 3: Cross multiply
    821,960,615.44x = 1,232,940,899.33 × 379,172,288.38
  4. Step 4: Simplify right side
    821,960,615.44x = 467,497,022,242,345,856
  5. Step 5: Solve for x
    x = 467,497,022,242,345,856/821,960,615.44
  6. Step 6: Final answer
    x = 568,758,421.58

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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.