Home / 15,279,747.72-21,086,062.74-8,404,752.84

Finding the Fourth Proportional to 15,279,747.72, 21,086,062.74 and 8,404,752.84

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Solution

The fourth proportional to 15,279,747.72, 21,086,062.74 and 8,404,752.84 is: 11,598,564.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,279,747.72 : 21,086,062.74 = 8,404,752.84 : x
  2. Step 2: Convert to fraction form
    15,279,747.72/21,086,062.74 = 8,404,752.84/x
  3. Step 3: Cross multiply
    15,279,747.72x = 21,086,062.74 × 8,404,752.84
  4. Step 4: Simplify right side
    15,279,747.72x = 177,223,145,698,433.16
  5. Step 5: Solve for x
    x = 177,223,145,698,433.16/15,279,747.72
  6. Step 6: Final answer
    x = 11,598,564.91

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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.