Home / 9,279,513.09-12,805,867.38-5,149,811.79

Finding the Fourth Proportional to 9,279,513.09, 12,805,867.38 and 5,149,811.79

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Solution

The fourth proportional to 9,279,513.09, 12,805,867.38 and 5,149,811.79 is: 7,106,817.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279,513.09 : 12,805,867.38 = 5,149,811.79 : x
  2. Step 2: Convert to fraction form
    9,279,513.09/12,805,867.38 = 5,149,811.79/x
  3. Step 3: Cross multiply
    9,279,513.09x = 12,805,867.38 × 5,149,811.79
  4. Step 4: Simplify right side
    9,279,513.09x = 65,947,806,814,700.41
  5. Step 5: Solve for x
    x = 65,947,806,814,700.41/9,279,513.09
  6. Step 6: Final answer
    x = 7,106,817.59

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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.