Home / 505,420,638.88-697,437,193.44-290,846,234.56

Finding the Fourth Proportional to 505,420,638.88, 697,437,193.44 and 290,846,234.56

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Solution

The fourth proportional to 505,420,638.88, 697,437,193.44 and 290,846,234.56 is: 401,342,893.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,420,638.88 : 697,437,193.44 = 290,846,234.56 : x
  2. Step 2: Convert to fraction form
    505,420,638.88/697,437,193.44 = 290,846,234.56/x
  3. Step 3: Cross multiply
    505,420,638.88x = 697,437,193.44 × 290,846,234.56
  4. Step 4: Simplify right side
    505,420,638.88x = 202,846,981,554,118,336
  5. Step 5: Solve for x
    x = 202,846,981,554,118,336/505,420,638.88
  6. Step 6: Final answer
    x = 401,342,893.32

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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.