Home / 15,659,002.13-21,609,378.79-8,690,731.70

Finding the Fourth Proportional to 15,659,002.13, 21,609,378.79 and 8,690,731.70

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Solution

The fourth proportional to 15,659,002.13, 21,609,378.79 and 8,690,731.70 is: 11,993,185.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659,002.13 : 21,609,378.79 = 8,690,731.70 : x
  2. Step 2: Convert to fraction form
    15,659,002.13/21,609,378.79 = 8,690,731.70/x
  3. Step 3: Cross multiply
    15,659,002.13x = 21,609,378.79 × 8,690,731.70
  4. Step 4: Simplify right side
    15,659,002.13x = 187,801,313,137,786.94
  5. Step 5: Solve for x
    x = 187,801,313,137,786.94/15,659,002.13
  6. Step 6: Final answer
    x = 11,993,185.24

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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.