Home / 621,158,737,584.80-931,831,269,272.56-218,171,179,167.20

Finding the Fourth Proportional to 621,158,737,584.80, 931,831,269,272.56 and 218,171,179,167.20

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Solution

The fourth proportional to 621,158,737,584.80, 931,831,269,272.56 and 218,171,179,167.20 is: 327,289,490,593.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,158,737,584.80 : 931,831,269,272.56 = 218,171,179,167.20 : x
  2. Step 2: Convert to fraction form
    621,158,737,584.80/931,831,269,272.56 = 218,171,179,167.20/x
  3. Step 3: Cross multiply
    621,158,737,584.80x = 931,831,269,272.56 × 218,171,179,167.20
  4. Step 4: Simplify right side
    621,158,737,584.80x = 203,298,726,802,063,093,661,696
  5. Step 5: Solve for x
    x = 203,298,726,802,063,093,661,696/621,158,737,584.80
  6. Step 6: Final answer
    x = 327,289,490,593.87

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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.