Home / 15,661,515.54-21,613,038.84-8,786,145.18

Finding the Fourth Proportional to 15,661,515.54, 21,613,038.84 and 8,786,145.18

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Solution

The fourth proportional to 15,661,515.54, 21,613,038.84 and 8,786,145.18 is: 12,124,963.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,661,515.54 : 21,613,038.84 = 8,786,145.18 : x
  2. Step 2: Convert to fraction form
    15,661,515.54/21,613,038.84 = 8,786,145.18/x
  3. Step 3: Cross multiply
    15,661,515.54x = 21,613,038.84 × 8,786,145.18
  4. Step 4: Simplify right side
    15,661,515.54x = 189,895,297,029,218.78
  5. Step 5: Solve for x
    x = 189,895,297,029,218.78/15,661,515.54
  6. Step 6: Final answer
    x = 12,124,963.04

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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.