Home / 499,873,704.54-689,784,773.20-285,291,291.12

Finding the Fourth Proportional to 499,873,704.54, 689,784,773.20 and 285,291,291.12

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Solution

The fourth proportional to 499,873,704.54, 689,784,773.20 and 285,291,291.12 is: 393,678,616.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,873,704.54 : 689,784,773.20 = 285,291,291.12 : x
  2. Step 2: Convert to fraction form
    499,873,704.54/689,784,773.20 = 285,291,291.12/x
  3. Step 3: Cross multiply
    499,873,704.54x = 689,784,773.20 × 285,291,291.12
  4. Step 4: Simplify right side
    499,873,704.54x = 196,789,588,541,144,384
  5. Step 5: Solve for x
    x = 196,789,588,541,144,384/499,873,704.54
  6. Step 6: Final answer
    x = 393,678,616.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.