Home / 21,923,691-30,252,644.28-13,101,392.04

Finding the Fourth Proportional to 21,923,691, 30,252,644.28 and 13,101,392.04

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Solution

The fourth proportional to 21,923,691, 30,252,644.28 and 13,101,392.04 is: 18,078,696.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923,691 : 30,252,644.28 = 13,101,392.04 : x
  2. Step 2: Convert to fraction form
    21,923,691/30,252,644.28 = 13,101,392.04/x
  3. Step 3: Cross multiply
    21,923,691x = 30,252,644.28 × 13,101,392.04
  4. Step 4: Simplify right side
    21,923,691x = 396,351,752,958,943.50
  5. Step 5: Solve for x
    x = 396,351,752,958,943.50/21,923,691
  6. Step 6: Final answer
    x = 18,078,696.37

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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.