Home / 15,132,899.79-20,883,905.73-8,257,759.11

Finding the Fourth Proportional to 15,132,899.79, 20,883,905.73 and 8,257,759.11

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Solution

The fourth proportional to 15,132,899.79, 20,883,905.73 and 8,257,759.11 is: 11,395,982.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132,899.79 : 20,883,905.73 = 8,257,759.11 : x
  2. Step 2: Convert to fraction form
    15,132,899.79/20,883,905.73 = 8,257,759.11/x
  3. Step 3: Cross multiply
    15,132,899.79x = 20,883,905.73 × 8,257,759.11
  4. Step 4: Simplify right side
    15,132,899.79x = 172,454,262,794,288.72
  5. Step 5: Solve for x
    x = 172,454,262,794,288.72/15,132,899.79
  6. Step 6: Final answer
    x = 11,395,982.61

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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.