Home / 28,542,404.16-39,388,544.64-15,489,665.28

Finding the Fourth Proportional to 28,542,404.16, 39,388,544.64 and 15,489,665.28

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Solution

The fourth proportional to 28,542,404.16, 39,388,544.64 and 15,489,665.28 is: 21,375,752.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542,404.16 : 39,388,544.64 = 15,489,665.28 : x
  2. Step 2: Convert to fraction form
    28,542,404.16/39,388,544.64 = 15,489,665.28/x
  3. Step 3: Cross multiply
    28,542,404.16x = 39,388,544.64 × 15,489,665.28
  4. Step 4: Simplify right side
    28,542,404.16x = 610,115,372,339,938.12
  5. Step 5: Solve for x
    x = 610,115,372,339,938.12/28,542,404.16
  6. Step 6: Final answer
    x = 21,375,752.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.