Home / 36,618,889.89-54,937,907.57-21,251,406.78

Finding the Fourth Proportional to 36,618,889.89, 54,937,907.57 and 21,251,406.78

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Solution

The fourth proportional to 36,618,889.89, 54,937,907.57 and 21,251,406.78 is: 31,882,665.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,618,889.89 : 54,937,907.57 = 21,251,406.78 : x
  2. Step 2: Convert to fraction form
    36,618,889.89/54,937,907.57 = 21,251,406.78/x
  3. Step 3: Cross multiply
    36,618,889.89x = 54,937,907.57 × 21,251,406.78
  4. Step 4: Simplify right side
    36,618,889.89x = 1,167,507,821,465,239.75
  5. Step 5: Solve for x
    x = 1,167,507,821,465,239.75/36,618,889.89
  6. Step 6: Final answer
    x = 31,882,665.61

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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.