Home / 18,676,431-25,785,467.64-11,716,648.56

Finding the Fourth Proportional to 18,676,431, 25,785,467.64 and 11,716,648.56

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Solution

The fourth proportional to 18,676,431, 25,785,467.64 and 11,716,648.56 is: 16,176,498.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676,431 : 25,785,467.64 = 11,716,648.56 : x
  2. Step 2: Convert to fraction form
    18,676,431/25,785,467.64 = 11,716,648.56/x
  3. Step 3: Cross multiply
    18,676,431x = 25,785,467.64 × 11,716,648.56
  4. Step 4: Simplify right side
    18,676,431x = 302,119,262,293,132.62
  5. Step 5: Solve for x
    x = 302,119,262,293,132.62/18,676,431
  6. Step 6: Final answer
    x = 16,176,498.73

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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.