Home / 15,644,778.56-21,590,792.16-8,769,262.40

Finding the Fourth Proportional to 15,644,778.56, 21,590,792.16 and 8,769,262.40

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Solution

The fourth proportional to 15,644,778.56, 21,590,792.16 and 8,769,262.40 is: 12,102,141.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,644,778.56 : 21,590,792.16 = 8,769,262.40 : x
  2. Step 2: Convert to fraction form
    15,644,778.56/21,590,792.16 = 8,769,262.40/x
  3. Step 3: Cross multiply
    15,644,778.56x = 21,590,792.16 × 8,769,262.40
  4. Step 4: Simplify right side
    15,644,778.56x = 189,335,321,874,902.78
  5. Step 5: Solve for x
    x = 189,335,321,874,902.78/15,644,778.56
  6. Step 6: Final answer
    x = 12,102,141.37

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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.