Home / 325,690,667.20-488,536,000.80-172,635,659.20

Finding the Fourth Proportional to 325,690,667.20, 488,536,000.80 and 172,635,659.20

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Solution

The fourth proportional to 325,690,667.20, 488,536,000.80 and 172,635,659.20 is: 258,953,488.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,690,667.20 : 488,536,000.80 = 172,635,659.20 : x
  2. Step 2: Convert to fraction form
    325,690,667.20/488,536,000.80 = 172,635,659.20/x
  3. Step 3: Cross multiply
    325,690,667.20x = 488,536,000.80 × 172,635,659.20
  4. Step 4: Simplify right side
    325,690,667.20x = 84,338,734,541,039,728
  5. Step 5: Solve for x
    x = 84,338,734,541,039,728/325,690,667.20
  6. Step 6: Final answer
    x = 258,953,488.80

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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.