Home / 21,842,406.62-30,143,161.73-11,919,929.97

Finding the Fourth Proportional to 21,842,406.62, 30,143,161.73 and 11,919,929.97

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Solution

The fourth proportional to 21,842,406.62, 30,143,161.73 and 11,919,929.97 is: 16,449,852.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,842,406.62 : 30,143,161.73 = 11,919,929.97 : x
  2. Step 2: Convert to fraction form
    21,842,406.62/30,143,161.73 = 11,919,929.97/x
  3. Step 3: Cross multiply
    21,842,406.62x = 30,143,161.73 × 11,919,929.97
  4. Step 4: Simplify right side
    21,842,406.62x = 359,304,376,745,268.25
  5. Step 5: Solve for x
    x = 359,304,376,745,268.25/21,842,406.62
  6. Step 6: Final answer
    x = 16,449,852.94

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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.