Home / 285,856,816.11-394,260,008.91-206,768,555.86

Finding the Fourth Proportional to 285,856,816.11, 394,260,008.91 and 206,768,555.86

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Solution

The fourth proportional to 285,856,816.11, 394,260,008.91 and 206,768,555.86 is: 285,179,740.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,856,816.11 : 394,260,008.91 = 206,768,555.86 : x
  2. Step 2: Convert to fraction form
    285,856,816.11/394,260,008.91 = 206,768,555.86/x
  3. Step 3: Cross multiply
    285,856,816.11x = 394,260,008.91 × 206,768,555.86
  4. Step 4: Simplify right side
    285,856,816.11x = 81,520,572,673,948,528
  5. Step 5: Solve for x
    x = 81,520,572,673,948,528/285,856,816.11
  6. Step 6: Final answer
    x = 285,179,740.63

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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.