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Finding the Fourth Proportional to 43,980,145.80, 65,970,218.70 and 36,858,836.40

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Solution

The fourth proportional to 43,980,145.80, 65,970,218.70 and 36,858,836.40 is: 55,288,254.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,980,145.80 : 65,970,218.70 = 36,858,836.40 : x
  2. Step 2: Convert to fraction form
    43,980,145.80/65,970,218.70 = 36,858,836.40/x
  3. Step 3: Cross multiply
    43,980,145.80x = 65,970,218.70 × 36,858,836.40
  4. Step 4: Simplify right side
    43,980,145.80x = 2,431,585,498,335,520.50
  5. Step 5: Solve for x
    x = 2,431,585,498,335,520.50/43,980,145.80
  6. Step 6: Final answer
    x = 55,288,254.60

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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.