Home / 15,613,182.60-21,545,729.22-8,644,170.78

Finding the Fourth Proportional to 15,613,182.60, 21,545,729.22 and 8,644,170.78

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Solution

The fourth proportional to 15,613,182.60, 21,545,729.22 and 8,644,170.78 is: 11,928,699.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,613,182.60 : 21,545,729.22 = 8,644,170.78 : x
  2. Step 2: Convert to fraction form
    15,613,182.60/21,545,729.22 = 8,644,170.78/x
  3. Step 3: Cross multiply
    15,613,182.60x = 21,545,729.22 × 8,644,170.78
  4. Step 4: Simplify right side
    15,613,182.60x = 186,244,962,957,316.16
  5. Step 5: Solve for x
    x = 186,244,962,957,316.16/15,613,182.60
  6. Step 6: Final answer
    x = 11,928,699.47

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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.