Home / 21,205,033.92-29,262,178.44-12,958,891.92

Finding the Fourth Proportional to 21,205,033.92, 29,262,178.44 and 12,958,891.92

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Solution

The fourth proportional to 21,205,033.92, 29,262,178.44 and 12,958,891.92 is: 17,882,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205,033.92 : 29,262,178.44 = 12,958,891.92 : x
  2. Step 2: Convert to fraction form
    21,205,033.92/29,262,178.44 = 12,958,891.92/x
  3. Step 3: Cross multiply
    21,205,033.92x = 29,262,178.44 × 12,958,891.92
  4. Step 4: Simplify right side
    21,205,033.92x = 379,205,407,747,714.25
  5. Step 5: Solve for x
    x = 379,205,407,747,714.25/21,205,033.92
  6. Step 6: Final answer
    x = 17,882,801.28

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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.