Home / 21,508,616.58-29,681,517.12-11,719,141.20

Finding the Fourth Proportional to 21,508,616.58, 29,681,517.12 and 11,719,141.20

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Solution

The fourth proportional to 21,508,616.58, 29,681,517.12 and 11,719,141.20 is: 16,172,211.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,508,616.58 : 29,681,517.12 = 11,719,141.20 : x
  2. Step 2: Convert to fraction form
    21,508,616.58/29,681,517.12 = 11,719,141.20/x
  3. Step 3: Cross multiply
    21,508,616.58x = 29,681,517.12 × 11,719,141.20
  4. Step 4: Simplify right side
    21,508,616.58x = 347,841,890,159,497.31
  5. Step 5: Solve for x
    x = 347,841,890,159,497.31/21,508,616.58
  6. Step 6: Final answer
    x = 16,172,211.21

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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.