Home / 12,661,784.36-17,479,287.05-8,482,665.19

Finding the Fourth Proportional to 12,661,784.36, 17,479,287.05 and 8,482,665.19

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Solution

The fourth proportional to 12,661,784.36, 17,479,287.05 and 8,482,665.19 is: 11,710,114.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,661,784.36 : 17,479,287.05 = 8,482,665.19 : x
  2. Step 2: Convert to fraction form
    12,661,784.36/17,479,287.05 = 8,482,665.19/x
  3. Step 3: Cross multiply
    12,661,784.36x = 17,479,287.05 × 8,482,665.19
  4. Step 4: Simplify right side
    12,661,784.36x = 148,270,939,805,052.78
  5. Step 5: Solve for x
    x = 148,270,939,805,052.78/12,661,784.36
  6. Step 6: Final answer
    x = 11,710,114.12

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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.