Home / 660,431,976.35-990,648,149.09-194,093,375.46

Finding the Fourth Proportional to 660,431,976.35, 990,648,149.09 and 194,093,375.46

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Solution

The fourth proportional to 660,431,976.35, 990,648,149.09 and 194,093,375.46 is: 291,140,117.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,431,976.35 : 990,648,149.09 = 194,093,375.46 : x
  2. Step 2: Convert to fraction form
    660,431,976.35/990,648,149.09 = 194,093,375.46/x
  3. Step 3: Cross multiply
    660,431,976.35x = 990,648,149.09 × 194,093,375.46
  4. Step 4: Simplify right side
    660,431,976.35x = 192,278,243,149,108,992
  5. Step 5: Solve for x
    x = 192,278,243,149,108,992/660,431,976.35
  6. Step 6: Final answer
    x = 291,140,117.43

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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.