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Finding the Fourth Proportional to 239,236,468.80, 359,022,664.80 and 103,019,611.20

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Solution

The fourth proportional to 239,236,468.80, 359,022,664.80 and 103,019,611.20 is: 154,601,744.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,236,468.80 : 359,022,664.80 = 103,019,611.20 : x
  2. Step 2: Convert to fraction form
    239,236,468.80/359,022,664.80 = 103,019,611.20/x
  3. Step 3: Cross multiply
    239,236,468.80x = 359,022,664.80 × 103,019,611.20
  4. Step 4: Simplify right side
    239,236,468.80x = 36,986,375,339,683,928
  5. Step 5: Solve for x
    x = 36,986,375,339,683,928/239,236,468.80
  6. Step 6: Final answer
    x = 154,601,744.15

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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.