Home / 78,972,046.47-118,433,933.31-27,842,107.86

Finding the Fourth Proportional to 78,972,046.47, 118,433,933.31 and 27,842,107.86

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Solution

The fourth proportional to 78,972,046.47, 118,433,933.31 and 27,842,107.86 is: 41,754,652.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,972,046.47 : 118,433,933.31 = 27,842,107.86 : x
  2. Step 2: Convert to fraction form
    78,972,046.47/118,433,933.31 = 27,842,107.86/x
  3. Step 3: Cross multiply
    78,972,046.47x = 118,433,933.31 × 27,842,107.86
  4. Step 4: Simplify right side
    78,972,046.47x = 3,297,450,345,501,067
  5. Step 5: Solve for x
    x = 3,297,450,345,501,067/78,972,046.47
  6. Step 6: Final answer
    x = 41,754,652.35

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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.