Home / 505,420,637.88-697,437,192.06-290,846,233.56

Finding the Fourth Proportional to 505,420,637.88, 697,437,192.06 and 290,846,233.56

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Solution

The fourth proportional to 505,420,637.88, 697,437,192.06 and 290,846,233.56 is: 401,342,891.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,420,637.88 : 697,437,192.06 = 290,846,233.56 : x
  2. Step 2: Convert to fraction form
    505,420,637.88/697,437,192.06 = 290,846,233.56/x
  3. Step 3: Cross multiply
    505,420,637.88x = 697,437,192.06 × 290,846,233.56
  4. Step 4: Simplify right side
    505,420,637.88x = 202,846,980,455,313,312
  5. Step 5: Solve for x
    x = 202,846,980,455,313,312/505,420,637.88
  6. Step 6: Final answer
    x = 401,342,891.94

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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.