Home / 21,585,936-29,789,744.64-12,419,976

Finding the Fourth Proportional to 21,585,936, 29,789,744.64 and 12,419,976

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Solution

The fourth proportional to 21,585,936, 29,789,744.64 and 12,419,976 is: 17,140,230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,585,936 : 29,789,744.64 = 12,419,976 : x
  2. Step 2: Convert to fraction form
    21,585,936/29,789,744.64 = 12,419,976/x
  3. Step 3: Cross multiply
    21,585,936x = 29,789,744.64 × 12,419,976
  4. Step 4: Simplify right side
    21,585,936x = 369,987,913,474,928.62
  5. Step 5: Solve for x
    x = 369,987,913,474,928.62/21,585,936
  6. Step 6: Final answer
    x = 17,140,230.26

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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.