Home / 347,731,998.80-521,597,998.20-311,452,293.20

Finding the Fourth Proportional to 347,731,998.80, 521,597,998.20 and 311,452,293.20

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Solution

The fourth proportional to 347,731,998.80, 521,597,998.20 and 311,452,293.20 is: 467,178,439.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,731,998.80 : 521,597,998.20 = 311,452,293.20 : x
  2. Step 2: Convert to fraction form
    347,731,998.80/521,597,998.20 = 311,452,293.20/x
  3. Step 3: Cross multiply
    347,731,998.80x = 521,597,998.20 × 311,452,293.20
  4. Step 4: Simplify right side
    347,731,998.80x = 162,452,892,667,919,456
  5. Step 5: Solve for x
    x = 162,452,892,667,919,456/347,731,998.80
  6. Step 6: Final answer
    x = 467,178,439.80

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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.