Home / 80,852,375.40-121,278,563.10-68,097,791.40

Finding the Fourth Proportional to 80,852,375.40, 121,278,563.10 and 68,097,791.40

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Solution

The fourth proportional to 80,852,375.40, 121,278,563.10 and 68,097,791.40 is: 102,146,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,852,375.40 : 121,278,563.10 = 68,097,791.40 : x
  2. Step 2: Convert to fraction form
    80,852,375.40/121,278,563.10 = 68,097,791.40/x
  3. Step 3: Cross multiply
    80,852,375.40x = 121,278,563.10 × 68,097,791.40
  4. Step 4: Simplify right side
    80,852,375.40x = 8,258,802,291,275,538
  5. Step 5: Solve for x
    x = 8,258,802,291,275,538/80,852,375.40
  6. Step 6: Final answer
    x = 102,146,687.10

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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.