Home / 1,165,261,121.12-1,608,060,992.33-629,412,783.64

Finding the Fourth Proportional to 1,165,261,121.12, 1,608,060,992.33 and 629,412,783.64

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Solution

The fourth proportional to 1,165,261,121.12, 1,608,060,992.33 and 629,412,783.64 is: 868,589,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,261,121.12 : 1,608,060,992.33 = 629,412,783.64 : x
  2. Step 2: Convert to fraction form
    1,165,261,121.12/1,608,060,992.33 = 629,412,783.64/x
  3. Step 3: Cross multiply
    1,165,261,121.12x = 1,608,060,992.33 × 629,412,783.64
  4. Step 4: Simplify right side
    1,165,261,121.12x = 1,012,134,145,442,879,488
  5. Step 5: Solve for x
    x = 1,012,134,145,442,879,488/1,165,261,121.12
  6. Step 6: Final answer
    x = 868,589,989.91

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Double scale
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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.