Home / 808,626,786.80-1,212,940,180.20-263,368,320.80

Finding the Fourth Proportional to 808,626,786.80, 1,212,940,180.20 and 263,368,320.80

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Solution

The fourth proportional to 808,626,786.80, 1,212,940,180.20 and 263,368,320.80 is: 395,052,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,626,786.80 : 1,212,940,180.20 = 263,368,320.80 : x
  2. Step 2: Convert to fraction form
    808,626,786.80/1,212,940,180.20 = 263,368,320.80/x
  3. Step 3: Cross multiply
    808,626,786.80x = 1,212,940,180.20 × 263,368,320.80
  4. Step 4: Simplify right side
    808,626,786.80x = 319,450,018,490,123,456
  5. Step 5: Solve for x
    x = 319,450,018,490,123,456/808,626,786.80
  6. Step 6: Final answer
    x = 395,052,481.20

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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.