Home / 27,201,138.80-40,801,708.20-21,036,423.20

Finding the Fourth Proportional to 27,201,138.80, 40,801,708.20 and 21,036,423.20

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Solution

The fourth proportional to 27,201,138.80, 40,801,708.20 and 21,036,423.20 is: 31,554,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,201,138.80 : 40,801,708.20 = 21,036,423.20 : x
  2. Step 2: Convert to fraction form
    27,201,138.80/40,801,708.20 = 21,036,423.20/x
  3. Step 3: Cross multiply
    27,201,138.80x = 40,801,708.20 × 21,036,423.20
  4. Step 4: Simplify right side
    27,201,138.80x = 858,322,000,978,110.25
  5. Step 5: Solve for x
    x = 858,322,000,978,110.25/27,201,138.80
  6. Step 6: Final answer
    x = 31,554,634.80

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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.