Home / 21,205,034.92-29,262,179.82-12,958,892.92

Finding the Fourth Proportional to 21,205,034.92, 29,262,179.82 and 12,958,892.92

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Solution

The fourth proportional to 21,205,034.92, 29,262,179.82 and 12,958,892.92 is: 17,882,802.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205,034.92 : 29,262,179.82 = 12,958,892.92 : x
  2. Step 2: Convert to fraction form
    21,205,034.92/29,262,179.82 = 12,958,892.92/x
  3. Step 3: Cross multiply
    21,205,034.92x = 29,262,179.82 × 12,958,892.92
  4. Step 4: Simplify right side
    21,205,034.92x = 379,205,454,893,164.88
  5. Step 5: Solve for x
    x = 379,205,454,893,164.88/21,205,034.92
  6. Step 6: Final answer
    x = 17,882,802.66

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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.