Home / 78,388,026.12-117,584,682.96-27,270,468.36

Finding the Fourth Proportional to 78,388,026.12, 117,584,682.96 and 27,270,468.36

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Solution

The fourth proportional to 78,388,026.12, 117,584,682.96 and 27,270,468.36 is: 40,906,622.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,388,026.12 : 117,584,682.96 = 27,270,468.36 : x
  2. Step 2: Convert to fraction form
    78,388,026.12/117,584,682.96 = 27,270,468.36/x
  3. Step 3: Cross multiply
    78,388,026.12x = 117,584,682.96 × 27,270,468.36
  4. Step 4: Simplify right side
    78,388,026.12x = 3,206,589,376,281,311
  5. Step 5: Solve for x
    x = 3,206,589,376,281,311/78,388,026.12
  6. Step 6: Final answer
    x = 40,906,622.29

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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.