Home / 18,798,676.79-28,192,274.81-13,000,135.73

Finding the Fourth Proportional to 18,798,676.79, 28,192,274.81 and 13,000,135.73

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Solution

The fourth proportional to 18,798,676.79, 28,192,274.81 and 13,000,135.73 is: 19,496,233.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,798,676.79 : 28,192,274.81 = 13,000,135.73 : x
  2. Step 2: Convert to fraction form
    18,798,676.79/28,192,274.81 = 13,000,135.73/x
  3. Step 3: Cross multiply
    18,798,676.79x = 28,192,274.81 × 13,000,135.73
  4. Step 4: Simplify right side
    18,798,676.79x = 366,503,398,861,497.88
  5. Step 5: Solve for x
    x = 366,503,398,861,497.88/18,798,676.79
  6. Step 6: Final answer
    x = 19,496,233.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.