Home / 31,616,097.93-43,616,855.12-21,165,481.28

Finding the Fourth Proportional to 31,616,097.93, 43,616,855.12 and 21,165,481.28

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Solution

The fourth proportional to 31,616,097.93, 43,616,855.12 and 21,165,481.28 is: 29,199,420.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,616,097.93 : 43,616,855.12 = 21,165,481.28 : x
  2. Step 2: Convert to fraction form
    31,616,097.93/43,616,855.12 = 21,165,481.28/x
  3. Step 3: Cross multiply
    31,616,097.93x = 43,616,855.12 × 21,165,481.28
  4. Step 4: Simplify right side
    31,616,097.93x = 923,171,730,658,933.12
  5. Step 5: Solve for x
    x = 923,171,730,658,933.12/31,616,097.93
  6. Step 6: Final answer
    x = 29,199,420.27

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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.