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Finding the Fourth Proportional to 449,894,904.10, 620,605,033.57 and 261,702,012.26

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Solution

The fourth proportional to 449,894,904.10, 620,605,033.57 and 261,702,012.26 is: 361,003,391.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,894,904.10 : 620,605,033.57 = 261,702,012.26 : x
  2. Step 2: Convert to fraction form
    449,894,904.10/620,605,033.57 = 261,702,012.26/x
  3. Step 3: Cross multiply
    449,894,904.10x = 620,605,033.57 × 261,702,012.26
  4. Step 4: Simplify right side
    449,894,904.10x = 162,413,586,102,645,344
  5. Step 5: Solve for x
    x = 162,413,586,102,645,344/449,894,904.10
  6. Step 6: Final answer
    x = 361,003,391.29

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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.