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Finding the Fourth Proportional to 605,328,608.80, 907,992,913.20 and 329,112,149.05

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Solution

The fourth proportional to 605,328,608.80, 907,992,913.20 and 329,112,149.05 is: 493,668,223.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,328,608.80 : 907,992,913.20 = 329,112,149.05 : x
  2. Step 2: Convert to fraction form
    605,328,608.80/907,992,913.20 = 329,112,149.05/x
  3. Step 3: Cross multiply
    605,328,608.80x = 907,992,913.20 × 329,112,149.05
  4. Step 4: Simplify right side
    605,328,608.80x = 298,831,498,985,422,144
  5. Step 5: Solve for x
    x = 298,831,498,985,422,144/605,328,608.80
  6. Step 6: Final answer
    x = 493,668,223.58

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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.