Home / 621,158,737,585.42-931,831,269,273.52-218,171,179,167.80

Finding the Fourth Proportional to 621,158,737,585.42, 931,831,269,273.52 and 218,171,179,167.80

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Solution

The fourth proportional to 621,158,737,585.42, 931,831,269,273.52 and 218,171,179,167.80 is: 327,289,490,594.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,158,737,585.42 : 931,831,269,273.52 = 218,171,179,167.80 : x
  2. Step 2: Convert to fraction form
    621,158,737,585.42/931,831,269,273.52 = 218,171,179,167.80/x
  3. Step 3: Cross multiply
    621,158,737,585.42x = 931,831,269,273.52 × 218,171,179,167.80
  4. Step 4: Simplify right side
    621,158,737,585.42x = 203,298,726,802,831,624,372,224
  5. Step 5: Solve for x
    x = 203,298,726,802,831,624,372,224/621,158,737,585.42
  6. Step 6: Final answer
    x = 327,289,490,594.79

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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.