Home / 15,729,163.82-21,706,919.49-8,759,841.32

Finding the Fourth Proportional to 15,729,163.82, 21,706,919.49 and 8,759,841.32

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Solution

The fourth proportional to 15,729,163.82, 21,706,919.49 and 8,759,841.32 is: 12,088,956.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,729,163.82 : 21,706,919.49 = 8,759,841.32 : x
  2. Step 2: Convert to fraction form
    15,729,163.82/21,706,919.49 = 8,759,841.32/x
  3. Step 3: Cross multiply
    15,729,163.82x = 21,706,919.49 × 8,759,841.32
  4. Step 4: Simplify right side
    15,729,163.82x = 190,149,170,169,880.72
  5. Step 5: Solve for x
    x = 190,149,170,169,880.72/15,729,163.82
  6. Step 6: Final answer
    x = 12,088,956.06

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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.