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Finding the Fourth Proportional to 419,906,064.90, 629,859,097.35 and 368,887,728.90

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Solution

The fourth proportional to 419,906,064.90, 629,859,097.35 and 368,887,728.90 is: 553,331,593.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,906,064.90 : 629,859,097.35 = 368,887,728.90 : x
  2. Step 2: Convert to fraction form
    419,906,064.90/629,859,097.35 = 368,887,728.90/x
  3. Step 3: Cross multiply
    419,906,064.90x = 629,859,097.35 × 368,887,728.90
  4. Step 4: Simplify right side
    419,906,064.90x = 232,347,291,948,445,504
  5. Step 5: Solve for x
    x = 232,347,291,948,445,504/419,906,064.90
  6. Step 6: Final answer
    x = 553,331,593.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.