Home / 231,821,123.70-347,731,685.55-207,634,653.30

Finding the Fourth Proportional to 231,821,123.70, 347,731,685.55 and 207,634,653.30

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Solution

The fourth proportional to 231,821,123.70, 347,731,685.55 and 207,634,653.30 is: 311,451,979.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,821,123.70 : 347,731,685.55 = 207,634,653.30 : x
  2. Step 2: Convert to fraction form
    231,821,123.70/347,731,685.55 = 207,634,653.30/x
  3. Step 3: Cross multiply
    231,821,123.70x = 347,731,685.55 × 207,634,653.30
  4. Step 4: Simplify right side
    231,821,123.70x = 72,201,147,970,598,880
  5. Step 5: Solve for x
    x = 72,201,147,970,598,880/231,821,123.70
  6. Step 6: Final answer
    x = 311,451,979.95

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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.