Home / 659,305,040.80-988,957,561.20-199,314,205.60

Finding the Fourth Proportional to 659,305,040.80, 988,957,561.20 and 199,314,205.60

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Solution

The fourth proportional to 659,305,040.80, 988,957,561.20 and 199,314,205.60 is: 298,971,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,305,040.80 : 988,957,561.20 = 199,314,205.60 : x
  2. Step 2: Convert to fraction form
    659,305,040.80/988,957,561.20 = 199,314,205.60/x
  3. Step 3: Cross multiply
    659,305,040.80x = 988,957,561.20 × 199,314,205.60
  4. Step 4: Simplify right side
    659,305,040.80x = 197,113,290,682,691,392
  5. Step 5: Solve for x
    x = 197,113,290,682,691,392/659,305,040.80
  6. Step 6: Final answer
    x = 298,971,308.40

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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.