Home / 199,069,984.80-298,560,164.40-71,419,168.80

Finding the Fourth Proportional to 199,069,984.80, 298,560,164.40 and 71,419,168.80

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Solution

The fourth proportional to 199,069,984.80, 298,560,164.40 and 71,419,168.80 is: 107,112,675.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,069,984.80 : 298,560,164.40 = 71,419,168.80 : x
  2. Step 2: Convert to fraction form
    199,069,984.80/298,560,164.40 = 71,419,168.80/x
  3. Step 3: Cross multiply
    199,069,984.80x = 298,560,164.40 × 71,419,168.80
  4. Step 4: Simplify right side
    199,069,984.80x = 21,322,918,778,239,348
  5. Step 5: Solve for x
    x = 21,322,918,778,239,348/199,069,984.80
  6. Step 6: Final answer
    x = 107,112,675.98

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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.