Home / 748,865,741.38-1,123,451,816.88-257,515,199.11

Finding the Fourth Proportional to 748,865,741.38, 1,123,451,816.88 and 257,515,199.11

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Solution

The fourth proportional to 748,865,741.38, 1,123,451,816.88 and 257,515,199.11 is: 386,325,481.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,865,741.38 : 1,123,451,816.88 = 257,515,199.11 : x
  2. Step 2: Convert to fraction form
    748,865,741.38/1,123,451,816.88 = 257,515,199.11/x
  3. Step 3: Cross multiply
    748,865,741.38x = 1,123,451,816.88 × 257,515,199.11
  4. Step 4: Simplify right side
    748,865,741.38x = 289,305,918,314,344,512
  5. Step 5: Solve for x
    x = 289,305,918,314,344,512/748,865,741.38
  6. Step 6: Final answer
    x = 386,325,481.76

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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.