Home / 15,661,443.69-21,612,939.75-8,786,073.38

Finding the Fourth Proportional to 15,661,443.69, 21,612,939.75 and 8,786,073.38

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Solution

The fourth proportional to 15,661,443.69, 21,612,939.75 and 8,786,073.38 is: 12,124,863.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,661,443.69 : 21,612,939.75 = 8,786,073.38 : x
  2. Step 2: Convert to fraction form
    15,661,443.69/21,612,939.75 = 8,786,073.38/x
  3. Step 3: Cross multiply
    15,661,443.69x = 21,612,939.75 × 8,786,073.38
  4. Step 4: Simplify right side
    15,661,443.69x = 189,892,874,492,954.16
  5. Step 5: Solve for x
    x = 189,892,874,492,954.16/15,661,443.69
  6. Step 6: Final answer
    x = 12,124,863.98

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1.5x scale

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.