Home / 15,661,443.15-21,612,939.03-8,786,072.79

Finding the Fourth Proportional to 15,661,443.15, 21,612,939.03 and 8,786,072.79

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Solution

The fourth proportional to 15,661,443.15, 21,612,939.03 and 8,786,072.79 is: 12,124,863.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,661,443.15 : 21,612,939.03 = 8,786,072.79 : x
  2. Step 2: Convert to fraction form
    15,661,443.15/21,612,939.03 = 8,786,072.79/x
  3. Step 3: Cross multiply
    15,661,443.15x = 21,612,939.03 × 8,786,072.79
  4. Step 4: Simplify right side
    15,661,443.15x = 189,892,855,523,412
  5. Step 5: Solve for x
    x = 189,892,855,523,412/15,661,443.15
  6. Step 6: Final answer
    x = 12,124,863.19

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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.