Home / 71,148,884.88-106,729,629.12-20,031,346.56

Finding the Fourth Proportional to 71,148,884.88, 106,729,629.12 and 20,031,346.56

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Solution

The fourth proportional to 71,148,884.88, 106,729,629.12 and 20,031,346.56 is: 30,048,794.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,148,884.88 : 106,729,629.12 = 20,031,346.56 : x
  2. Step 2: Convert to fraction form
    71,148,884.88/106,729,629.12 = 20,031,346.56/x
  3. Step 3: Cross multiply
    71,148,884.88x = 106,729,629.12 × 20,031,346.56
  4. Step 4: Simplify right side
    71,148,884.88x = 2,137,938,189,122,987.75
  5. Step 5: Solve for x
    x = 2,137,938,189,122,987.75/71,148,884.88
  6. Step 6: Final answer
    x = 30,048,794.06

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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.