Home / 691,731,836.76-1,036,764,115.96-317,723,617.22

Finding the Fourth Proportional to 691,731,836.76, 1,036,764,115.96 and 317,723,617.22

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Solution

The fourth proportional to 691,731,836.76, 1,036,764,115.96 and 317,723,617.22 is: 476,202,521.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,731,836.76 : 1,036,764,115.96 = 317,723,617.22 : x
  2. Step 2: Convert to fraction form
    691,731,836.76/1,036,764,115.96 = 317,723,617.22/x
  3. Step 3: Cross multiply
    691,731,836.76x = 1,036,764,115.96 × 317,723,617.22
  4. Step 4: Simplify right side
    691,731,836.76x = 329,404,445,128,504,384
  5. Step 5: Solve for x
    x = 329,404,445,128,504,384/691,731,836.76
  6. Step 6: Final answer
    x = 476,202,521.88

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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.