Home / 12,170,987.71-16,797,089.78-6,738,479.71

Finding the Fourth Proportional to 12,170,987.71, 16,797,089.78 and 6,738,479.71

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Solution

The fourth proportional to 12,170,987.71, 16,797,089.78 and 6,738,479.71 is: 9,299,725.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170,987.71 : 16,797,089.78 = 6,738,479.71 : x
  2. Step 2: Convert to fraction form
    12,170,987.71/16,797,089.78 = 6,738,479.71/x
  3. Step 3: Cross multiply
    12,170,987.71x = 16,797,089.78 × 6,738,479.71
  4. Step 4: Simplify right side
    12,170,987.71x = 113,186,848,619,162.52
  5. Step 5: Solve for x
    x = 113,186,848,619,162.52/12,170,987.71
  6. Step 6: Final answer
    x = 9,299,725.82

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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.