Home / 31,251,475.22-43,122,945.96-18,021,140.79

Finding the Fourth Proportional to 31,251,475.22, 43,122,945.96 and 18,021,140.79

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Solution

The fourth proportional to 31,251,475.22, 43,122,945.96 and 18,021,140.79 is: 24,866,815.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,251,475.22 : 43,122,945.96 = 18,021,140.79 : x
  2. Step 2: Convert to fraction form
    31,251,475.22/43,122,945.96 = 18,021,140.79/x
  3. Step 3: Cross multiply
    31,251,475.22x = 43,122,945.96 × 18,021,140.79
  4. Step 4: Simplify right side
    31,251,475.22x = 777,124,680,263,010.62
  5. Step 5: Solve for x
    x = 777,124,680,263,010.62/31,251,475.22
  6. Step 6: Final answer
    x = 24,866,815.88

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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.