Home / 12,661,786.87-17,479,290.51-8,482,667.69

Finding the Fourth Proportional to 12,661,786.87, 17,479,290.51 and 8,482,667.69

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Solution

The fourth proportional to 12,661,786.87, 17,479,290.51 and 8,482,667.69 is: 11,710,117.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,661,786.87 : 17,479,290.51 = 8,482,667.69 : x
  2. Step 2: Convert to fraction form
    12,661,786.87/17,479,290.51 = 8,482,667.69/x
  3. Step 3: Cross multiply
    12,661,786.87x = 17,479,290.51 × 8,482,667.69
  4. Step 4: Simplify right side
    12,661,786.87x = 148,271,012,810,887.25
  5. Step 5: Solve for x
    x = 148,271,012,810,887.25/12,661,786.87
  6. Step 6: Final answer
    x = 11,710,117.57

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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.