Home / 85,339,974.76-117,740,335.97-55,557,061.58

Finding the Fourth Proportional to 85,339,974.76, 117,740,335.97 and 55,557,061.58

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Solution

The fourth proportional to 85,339,974.76, 117,740,335.97 and 55,557,061.58 is: 76,649,976.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,339,974.76 : 117,740,335.97 = 55,557,061.58 : x
  2. Step 2: Convert to fraction form
    85,339,974.76/117,740,335.97 = 55,557,061.58/x
  3. Step 3: Cross multiply
    85,339,974.76x = 117,740,335.97 × 55,557,061.58
  4. Step 4: Simplify right side
    85,339,974.76x = 6,541,307,095,485,370
  5. Step 5: Solve for x
    x = 6,541,307,095,485,370/85,339,974.76
  6. Step 6: Final answer
    x = 76,649,976.92

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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.