Home / 81,418,478.40-122,183,704.80-33,549,422.40

Finding the Fourth Proportional to 81,418,478.40, 122,183,704.80 and 33,549,422.40

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Solution

The fourth proportional to 81,418,478.40, 122,183,704.80 and 33,549,422.40 is: 50,347,203.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,418,478.40 : 122,183,704.80 = 33,549,422.40 : x
  2. Step 2: Convert to fraction form
    81,418,478.40/122,183,704.80 = 33,549,422.40/x
  3. Step 3: Cross multiply
    81,418,478.40x = 122,183,704.80 × 33,549,422.40
  4. Step 4: Simplify right side
    81,418,478.40x = 4,099,192,722,732,107
  5. Step 5: Solve for x
    x = 4,099,192,722,732,107/81,418,478.40
  6. Step 6: Final answer
    x = 50,347,203.77

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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.