Home / 31,282,614.72-43,161,903-18,882,907.92

Finding the Fourth Proportional to 31,282,614.72, 43,161,903 and 18,882,907.92

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Solution

The fourth proportional to 31,282,614.72, 43,161,903 and 18,882,907.92 is: 26,053,520.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,282,614.72 : 43,161,903 = 18,882,907.92 : x
  2. Step 2: Convert to fraction form
    31,282,614.72/43,161,903 = 18,882,907.92/x
  3. Step 3: Cross multiply
    31,282,614.72x = 43,161,903 × 18,882,907.92
  4. Step 4: Simplify right side
    31,282,614.72x = 815,022,240,000,971.88
  5. Step 5: Solve for x
    x = 815,022,240,000,971.88/31,282,614.72
  6. Step 6: Final answer
    x = 26,053,520.38

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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.