Home / 21,917,272.92-30,238,511.32-12,747,969.24

Finding the Fourth Proportional to 21,917,272.92, 30,238,511.32 and 12,747,969.24

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Solution

The fourth proportional to 21,917,272.92, 30,238,511.32 and 12,747,969.24 is: 17,587,936.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,917,272.92 : 30,238,511.32 = 12,747,969.24 : x
  2. Step 2: Convert to fraction form
    21,917,272.92/30,238,511.32 = 12,747,969.24/x
  3. Step 3: Cross multiply
    21,917,272.92x = 30,238,511.32 × 12,747,969.24
  4. Step 4: Simplify right side
    21,917,272.92x = 385,479,612,170,751.81
  5. Step 5: Solve for x
    x = 385,479,612,170,751.81/21,917,272.92
  6. Step 6: Final answer
    x = 17,587,936.86

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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.