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Finding the Fourth Proportional to 36,883,978.60, 55,325,967.90 and 18,744,125.80

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Solution

The fourth proportional to 36,883,978.60, 55,325,967.90 and 18,744,125.80 is: 28,116,188.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,883,978.60 : 55,325,967.90 = 18,744,125.80 : x
  2. Step 2: Convert to fraction form
    36,883,978.60/55,325,967.90 = 18,744,125.80/x
  3. Step 3: Cross multiply
    36,883,978.60x = 55,325,967.90 × 18,744,125.80
  4. Step 4: Simplify right side
    36,883,978.60x = 1,037,036,902,324,361.88
  5. Step 5: Solve for x
    x = 1,037,036,902,324,361.88/36,883,978.60
  6. Step 6: Final answer
    x = 28,116,188.70

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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.