Home / 68,674,778.42-103,017,564.05-19,489,850.31

Finding the Fourth Proportional to 68,674,778.42, 103,017,564.05 and 19,489,850.31

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Solution

The fourth proportional to 68,674,778.42, 103,017,564.05 and 19,489,850.31 is: 29,236,306.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,674,778.42 : 103,017,564.05 = 19,489,850.31 : x
  2. Step 2: Convert to fraction form
    68,674,778.42/103,017,564.05 = 19,489,850.31/x
  3. Step 3: Cross multiply
    68,674,778.42x = 103,017,564.05 × 19,489,850.31
  4. Step 4: Simplify right side
    68,674,778.42x = 2,007,796,902,798,715
  5. Step 5: Solve for x
    x = 2,007,796,902,798,715/68,674,778.42
  6. Step 6: Final answer
    x = 29,236,306.97

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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.