Home / 71,286,634.72-98,375,628.72-38,691,593.44

Finding the Fourth Proportional to 71,286,634.72, 98,375,628.72 and 38,691,593.44

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Solution

The fourth proportional to 71,286,634.72, 98,375,628.72 and 38,691,593.44 is: 53,394,438.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,286,634.72 : 98,375,628.72 = 38,691,593.44 : x
  2. Step 2: Convert to fraction form
    71,286,634.72/98,375,628.72 = 38,691,593.44/x
  3. Step 3: Cross multiply
    71,286,634.72x = 98,375,628.72 × 38,691,593.44
  4. Step 4: Simplify right side
    71,286,634.72x = 3,806,309,830,838,627.50
  5. Step 5: Solve for x
    x = 3,806,309,830,838,627.50/71,286,634.72
  6. Step 6: Final answer
    x = 53,394,438.46

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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.