Home / 12,691,131.88-17,513,972.58-6,889,913.32

Finding the Fourth Proportional to 12,691,131.88, 17,513,972.58 and 6,889,913.32

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Solution

The fourth proportional to 12,691,131.88, 17,513,972.58 and 6,889,913.32 is: 9,508,194.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691,131.88 : 17,513,972.58 = 6,889,913.32 : x
  2. Step 2: Convert to fraction form
    12,691,131.88/17,513,972.58 = 6,889,913.32/x
  3. Step 3: Cross multiply
    12,691,131.88x = 17,513,972.58 × 6,889,913.32
  4. Step 4: Simplify right side
    12,691,131.88x = 120,669,752,965,056.77
  5. Step 5: Solve for x
    x = 120,669,752,965,056.77/12,691,131.88
  6. Step 6: Final answer
    x = 9,508,194.71

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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.