Home / 21,679,438.33-29,919,517.01-11,891,774.21

Finding the Fourth Proportional to 21,679,438.33, 29,919,517.01 and 11,891,774.21

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Solution

The fourth proportional to 21,679,438.33, 29,919,517.01 and 11,891,774.21 is: 16,411,686.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,679,438.33 : 29,919,517.01 = 11,891,774.21 : x
  2. Step 2: Convert to fraction form
    21,679,438.33/29,919,517.01 = 11,891,774.21/x
  3. Step 3: Cross multiply
    21,679,438.33x = 29,919,517.01 × 11,891,774.21
  4. Step 4: Simplify right side
    21,679,438.33x = 355,796,140,635,306.12
  5. Step 5: Solve for x
    x = 355,796,140,635,306.12/21,679,438.33
  6. Step 6: Final answer
    x = 16,411,686.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.