Home / 773,463,696.21-1,067,380,015.91-421,042,362.35

Finding the Fourth Proportional to 773,463,696.21, 1,067,380,015.91 and 421,042,362.35

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Solution

The fourth proportional to 773,463,696.21, 1,067,380,015.91 and 421,042,362.35 is: 581,038,522.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,463,696.21 : 1,067,380,015.91 = 421,042,362.35 : x
  2. Step 2: Convert to fraction form
    773,463,696.21/1,067,380,015.91 = 421,042,362.35/x
  3. Step 3: Cross multiply
    773,463,696.21x = 1,067,380,015.91 × 421,042,362.35
  4. Step 4: Simplify right side
    773,463,696.21x = 449,412,203,416,484,864
  5. Step 5: Solve for x
    x = 449,412,203,416,484,864/773,463,696.21
  6. Step 6: Final answer
    x = 581,038,522.71

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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.