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Finding the Fourth Proportional to 367,991,659.80, 551,987,489.70 and 264,679,529.40

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Solution

The fourth proportional to 367,991,659.80, 551,987,489.70 and 264,679,529.40 is: 397,019,294.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,991,659.80 : 551,987,489.70 = 264,679,529.40 : x
  2. Step 2: Convert to fraction form
    367,991,659.80/551,987,489.70 = 264,679,529.40/x
  3. Step 3: Cross multiply
    367,991,659.80x = 551,987,489.70 × 264,679,529.40
  4. Step 4: Simplify right side
    367,991,659.80x = 146,099,789,008,483,360
  5. Step 5: Solve for x
    x = 146,099,789,008,483,360/367,991,659.80
  6. Step 6: Final answer
    x = 397,019,294.10

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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.