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Finding the Fourth Proportional to 68,304,009.20, 102,456,013.80 and 27,943,458.80

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Solution

The fourth proportional to 68,304,009.20, 102,456,013.80 and 27,943,458.80 is: 41,915,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,304,009.20 : 102,456,013.80 = 27,943,458.80 : x
  2. Step 2: Convert to fraction form
    68,304,009.20/102,456,013.80 = 27,943,458.80/x
  3. Step 3: Cross multiply
    68,304,009.20x = 102,456,013.80 × 27,943,458.80
  4. Step 4: Simplify right side
    68,304,009.20x = 2,862,975,400,432,531.50
  5. Step 5: Solve for x
    x = 2,862,975,400,432,531.50/68,304,009.20
  6. Step 6: Final answer
    x = 41,915,188.20

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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.