Home / 207,206,728.51-285,946,198.65-114,387,999.07

Finding the Fourth Proportional to 207,206,728.51, 285,946,198.65 and 114,387,999.07

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Solution

The fourth proportional to 207,206,728.51, 285,946,198.65 and 114,387,999.07 is: 157,855,942.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,206,728.51 : 285,946,198.65 = 114,387,999.07 : x
  2. Step 2: Convert to fraction form
    207,206,728.51/285,946,198.65 = 114,387,999.07/x
  3. Step 3: Cross multiply
    207,206,728.51x = 285,946,198.65 × 114,387,999.07
  4. Step 4: Simplify right side
    207,206,728.51x = 32,708,813,505,246,232
  5. Step 5: Solve for x
    x = 32,708,813,505,246,232/207,206,728.51
  6. Step 6: Final answer
    x = 157,855,942.91

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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.