Home / 68,438,122-102,661,906.38-19,916,377.72

Finding the Fourth Proportional to 68,438,122, 102,661,906.38 and 19,916,377.72

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Solution

The fourth proportional to 68,438,122, 102,661,906.38 and 19,916,377.72 is: 29,875,941.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,438,122 : 102,661,906.38 = 19,916,377.72 : x
  2. Step 2: Convert to fraction form
    68,438,122/102,661,906.38 = 19,916,377.72/x
  3. Step 3: Cross multiply
    68,438,122x = 102,661,906.38 × 19,916,377.72
  4. Step 4: Simplify right side
    68,438,122x = 2,044,653,304,919,357.75
  5. Step 5: Solve for x
    x = 2,044,653,304,919,357.75/68,438,122
  6. Step 6: Final answer
    x = 29,875,941.14

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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.