Home / 15,321,655-21,144,029.74-8,446,383.64

Finding the Fourth Proportional to 15,321,655, 21,144,029.74 and 8,446,383.64

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Solution

The fourth proportional to 15,321,655, 21,144,029.74 and 8,446,383.64 is: 11,656,089.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,321,655 : 21,144,029.74 = 8,446,383.64 : x
  2. Step 2: Convert to fraction form
    15,321,655/21,144,029.74 = 8,446,383.64/x
  3. Step 3: Cross multiply
    15,321,655x = 21,144,029.74 × 8,446,383.64
  4. Step 4: Simplify right side
    15,321,655x = 178,590,586,879,609.44
  5. Step 5: Solve for x
    x = 178,590,586,879,609.44/15,321,655
  6. Step 6: Final answer
    x = 11,656,089.82

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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.