Home / 218,107,826.82-300,987,372.29-124,021,980.63

Finding the Fourth Proportional to 218,107,826.82, 300,987,372.29 and 124,021,980.63

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Solution

The fourth proportional to 218,107,826.82, 300,987,372.29 and 124,021,980.63 is: 171,149,520.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,107,826.82 : 300,987,372.29 = 124,021,980.63 : x
  2. Step 2: Convert to fraction form
    218,107,826.82/300,987,372.29 = 124,021,980.63/x
  3. Step 3: Cross multiply
    218,107,826.82x = 300,987,372.29 × 124,021,980.63
  4. Step 4: Simplify right side
    218,107,826.82x = 37,329,050,055,404,872
  5. Step 5: Solve for x
    x = 37,329,050,055,404,872/218,107,826.82
  6. Step 6: Final answer
    x = 171,149,520.86

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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.