Home / 81,648,005.20-122,472,007.80-27,795,317.20

Finding the Fourth Proportional to 81,648,005.20, 122,472,007.80 and 27,795,317.20

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Solution

The fourth proportional to 81,648,005.20, 122,472,007.80 and 27,795,317.20 is: 41,692,975.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,648,005.20 : 122,472,007.80 = 27,795,317.20 : x
  2. Step 2: Convert to fraction form
    81,648,005.20/122,472,007.80 = 27,795,317.20/x
  3. Step 3: Cross multiply
    81,648,005.20x = 122,472,007.80 × 27,795,317.20
  4. Step 4: Simplify right side
    81,648,005.20x = 3,404,148,304,921,874
  5. Step 5: Solve for x
    x = 3,404,148,304,921,874/81,648,005.20
  6. Step 6: Final answer
    x = 41,692,975.80

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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.