Home / 660,431,995.11-990,648,176.76-194,093,393.76

Finding the Fourth Proportional to 660,431,995.11, 990,648,176.76 and 194,093,393.76

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Solution

The fourth proportional to 660,431,995.11, 990,648,176.76 and 194,093,393.76 is: 291,140,144.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,431,995.11 : 990,648,176.76 = 194,093,393.76 : x
  2. Step 2: Convert to fraction form
    660,431,995.11/990,648,176.76 = 194,093,393.76/x
  3. Step 3: Cross multiply
    660,431,995.11x = 990,648,176.76 × 194,093,393.76
  4. Step 4: Simplify right side
    660,431,995.11x = 192,278,266,649,504,736
  5. Step 5: Solve for x
    x = 192,278,266,649,504,736/660,431,995.11
  6. Step 6: Final answer
    x = 291,140,144.74

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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.