Home / 808,626,780.30-1,212,940,170.45-263,368,314.30

Finding the Fourth Proportional to 808,626,780.30, 1,212,940,170.45 and 263,368,314.30

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Solution

The fourth proportional to 808,626,780.30, 1,212,940,170.45 and 263,368,314.30 is: 395,052,471.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,626,780.30 : 1,212,940,170.45 = 263,368,314.30 : x
  2. Step 2: Convert to fraction form
    808,626,780.30/1,212,940,170.45 = 263,368,314.30/x
  3. Step 3: Cross multiply
    808,626,780.30x = 1,212,940,170.45 × 263,368,314.30
  4. Step 4: Simplify right side
    808,626,780.30x = 319,450,008,038,171,200
  5. Step 5: Solve for x
    x = 319,450,008,038,171,200/808,626,780.30
  6. Step 6: Final answer
    x = 395,052,471.45

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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.