Home / 621,158,737,446.15-931,831,269,064.60-218,171,179,028.86

Finding the Fourth Proportional to 621,158,737,446.15, 931,831,269,064.60 and 218,171,179,028.86

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Solution

The fourth proportional to 621,158,737,446.15, 931,831,269,064.60 and 218,171,179,028.86 is: 327,289,490,386.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,158,737,446.15 : 931,831,269,064.60 = 218,171,179,028.86 : x
  2. Step 2: Convert to fraction form
    621,158,737,446.15/931,831,269,064.60 = 218,171,179,028.86/x
  3. Step 3: Cross multiply
    621,158,737,446.15x = 931,831,269,064.60 × 218,171,179,028.86
  4. Step 4: Simplify right side
    621,158,737,446.15x = 203,298,726,627,782,648,922,112
  5. Step 5: Solve for x
    x = 203,298,726,627,782,648,922,112/621,158,737,446.15
  6. Step 6: Final answer
    x = 327,289,490,386.36

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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.