Home / 68,019,796.80-102,135,983.40-39,321,982.80

Finding the Fourth Proportional to 68,019,796.80, 102,135,983.40 and 39,321,982.80

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Solution

The fourth proportional to 68,019,796.80, 102,135,983.40 and 39,321,982.80 is: 59,044,419.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,019,796.80 : 102,135,983.40 = 39,321,982.80 : x
  2. Step 2: Convert to fraction form
    68,019,796.80/102,135,983.40 = 39,321,982.80/x
  3. Step 3: Cross multiply
    68,019,796.80x = 102,135,983.40 × 39,321,982.80
  4. Step 4: Simplify right side
    68,019,796.80x = 4,016,189,382,515,885.50
  5. Step 5: Solve for x
    x = 4,016,189,382,515,885.50/68,019,796.80
  6. Step 6: Final answer
    x = 59,044,419.00

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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.