Home / 18,798,678.79-28,192,277.80-13,000,137.73

Finding the Fourth Proportional to 18,798,678.79, 28,192,277.80 and 13,000,137.73

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Solution

The fourth proportional to 18,798,678.79, 28,192,277.80 and 13,000,137.73 is: 19,496,236.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,798,678.79 : 28,192,277.80 = 13,000,137.73 : x
  2. Step 2: Convert to fraction form
    18,798,678.79/28,192,277.80 = 13,000,137.73/x
  3. Step 3: Cross multiply
    18,798,678.79x = 28,192,277.80 × 13,000,137.73
  4. Step 4: Simplify right side
    18,798,678.79x = 366,503,494,322,421.44
  5. Step 5: Solve for x
    x = 366,503,494,322,421.44/18,798,678.79
  6. Step 6: Final answer
    x = 19,496,236.86

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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.