Home / 15,321,996.32-21,144,497.54-8,446,724.42

Finding the Fourth Proportional to 15,321,996.32, 21,144,497.54 and 8,446,724.42

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Solution

The fourth proportional to 15,321,996.32, 21,144,497.54 and 8,446,724.42 is: 11,656,558.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,321,996.32 : 21,144,497.54 = 8,446,724.42 : x
  2. Step 2: Convert to fraction form
    15,321,996.32/21,144,497.54 = 8,446,724.42/x
  3. Step 3: Cross multiply
    15,321,996.32x = 21,144,497.54 × 8,446,724.42
  4. Step 4: Simplify right side
    15,321,996.32x = 178,601,743,571,791.81
  5. Step 5: Solve for x
    x = 178,601,743,571,791.81/15,321,996.32
  6. Step 6: Final answer
    x = 11,656,558.32

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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.