Home / 18,231,988.05-25,162,872.89-11,358,684.45

Finding the Fourth Proportional to 18,231,988.05, 25,162,872.89 and 11,358,684.45

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Solution

The fourth proportional to 18,231,988.05, 25,162,872.89 and 11,358,684.45 is: 15,676,684.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231,988.05 : 25,162,872.89 = 11,358,684.45 : x
  2. Step 2: Convert to fraction form
    18,231,988.05/25,162,872.89 = 11,358,684.45/x
  3. Step 3: Cross multiply
    18,231,988.05x = 25,162,872.89 × 11,358,684.45
  4. Step 4: Simplify right side
    18,231,988.05x = 285,817,132,956,176.12
  5. Step 5: Solve for x
    x = 285,817,132,956,176.12/18,231,988.05
  6. Step 6: Final answer
    x = 15,676,684.97

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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.