Home / 212,568,087.40-318,852,131.10-194,428,234.60

Finding the Fourth Proportional to 212,568,087.40, 318,852,131.10 and 194,428,234.60

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Solution

The fourth proportional to 212,568,087.40, 318,852,131.10 and 194,428,234.60 is: 291,642,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,568,087.40 : 318,852,131.10 = 194,428,234.60 : x
  2. Step 2: Convert to fraction form
    212,568,087.40/318,852,131.10 = 194,428,234.60/x
  3. Step 3: Cross multiply
    212,568,087.40x = 318,852,131.10 × 194,428,234.60
  4. Step 4: Simplify right side
    212,568,087.40x = 61,993,856,948,220,760
  5. Step 5: Solve for x
    x = 61,993,856,948,220,760/212,568,087.40
  6. Step 6: Final answer
    x = 291,642,351.90

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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.