Home / 422,256,013.93-633,418,488.93-212,058,597.22

Finding the Fourth Proportional to 422,256,013.93, 633,418,488.93 and 212,058,597.22

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Solution

The fourth proportional to 422,256,013.93, 633,418,488.93 and 212,058,597.22 is: 318,105,205.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,256,013.93 : 633,418,488.93 = 212,058,597.22 : x
  2. Step 2: Convert to fraction form
    422,256,013.93/633,418,488.93 = 212,058,597.22/x
  3. Step 3: Cross multiply
    422,256,013.93x = 633,418,488.93 × 212,058,597.22
  4. Step 4: Simplify right side
    422,256,013.93x = 134,321,836,215,707,888
  5. Step 5: Solve for x
    x = 134,321,836,215,707,888/422,256,013.93
  6. Step 6: Final answer
    x = 318,105,205.81

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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.