Home / 681,275,183.34-1,021,898,089.17-189,975,354.78

Finding the Fourth Proportional to 681,275,183.34, 1,021,898,089.17 and 189,975,354.78

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Solution

The fourth proportional to 681,275,183.34, 1,021,898,089.17 and 189,975,354.78 is: 284,958,936.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,275,183.34 : 1,021,898,089.17 = 189,975,354.78 : x
  2. Step 2: Convert to fraction form
    681,275,183.34/1,021,898,089.17 = 189,975,354.78/x
  3. Step 3: Cross multiply
    681,275,183.34x = 1,021,898,089.17 × 189,975,354.78
  4. Step 4: Simplify right side
    681,275,183.34x = 194,135,452,039,074,816
  5. Step 5: Solve for x
    x = 194,135,452,039,074,816/681,275,183.34
  6. Step 6: Final answer
    x = 284,958,936.99

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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.