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Finding the Fourth Proportional to 243,872,942.07, 365,732,320.55 and 80,083,697.43

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Solution

The fourth proportional to 243,872,942.07, 365,732,320.55 and 80,083,697.43 is: 120,100,230.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,872,942.07 : 365,732,320.55 = 80,083,697.43 : x
  2. Step 2: Convert to fraction form
    243,872,942.07/365,732,320.55 = 80,083,697.43/x
  3. Step 3: Cross multiply
    243,872,942.07x = 365,732,320.55 × 80,083,697.43
  4. Step 4: Simplify right side
    243,872,942.07x = 29,289,196,499,297,976
  5. Step 5: Solve for x
    x = 29,289,196,499,297,976/243,872,942.07
  6. Step 6: Final answer
    x = 120,100,230.27

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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.