Home / 1,285,067,340.72-1,772,740,267.26-839,291,640.56

Finding the Fourth Proportional to 1,285,067,340.72, 1,772,740,267.26 and 839,291,640.56

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Solution

The fourth proportional to 1,285,067,340.72, 1,772,740,267.26 and 839,291,640.56 is: 1,157,796,202.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,067,340.72 : 1,772,740,267.26 = 839,291,640.56 : x
  2. Step 2: Convert to fraction form
    1,285,067,340.72/1,772,740,267.26 = 839,291,640.56/x
  3. Step 3: Cross multiply
    1,285,067,340.72x = 1,772,740,267.26 × 839,291,640.56
  4. Step 4: Simplify right side
    1,285,067,340.72x = 1,487,846,087,195,418,112
  5. Step 5: Solve for x
    x = 1,487,846,087,195,418,112/1,285,067,340.72
  6. Step 6: Final answer
    x = 1,157,796,202.62

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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.