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Finding the Fourth Proportional to 201,722,662.20, 302,472,018.90 and 80,417,062.20

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Solution

The fourth proportional to 201,722,662.20, 302,472,018.90 and 80,417,062.20 is: 120,580,954.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,722,662.20 : 302,472,018.90 = 80,417,062.20 : x
  2. Step 2: Convert to fraction form
    201,722,662.20/302,472,018.90 = 80,417,062.20/x
  3. Step 3: Cross multiply
    201,722,662.20x = 302,472,018.90 × 80,417,062.20
  4. Step 4: Simplify right side
    201,722,662.20x = 24,323,911,157,640,876
  5. Step 5: Solve for x
    x = 24,323,911,157,640,876/201,722,662.20
  6. Step 6: Final answer
    x = 120,580,954.53

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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.