Home / 664,872,002.55-997,308,003.83-551,625,794.55

Finding the Fourth Proportional to 664,872,002.55, 997,308,003.83 and 551,625,794.55

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Solution

The fourth proportional to 664,872,002.55, 997,308,003.83 and 551,625,794.55 is: 827,438,691.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,872,002.55 : 997,308,003.83 = 551,625,794.55 : x
  2. Step 2: Convert to fraction form
    664,872,002.55/997,308,003.83 = 551,625,794.55/x
  3. Step 3: Cross multiply
    664,872,002.55x = 997,308,003.83 × 551,625,794.55
  4. Step 4: Simplify right side
    664,872,002.55x = 550,140,820,021,040,064
  5. Step 5: Solve for x
    x = 550,140,820,021,040,064/664,872,002.55
  6. Step 6: Final answer
    x = 827,438,691.83

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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.