Home / 81,605,836.80-122,351,938.56-36,142,986.24

Finding the Fourth Proportional to 81,605,836.80, 122,351,938.56 and 36,142,986.24

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Solution

The fourth proportional to 81,605,836.80, 122,351,938.56 and 36,142,986.24 is: 54,189,315.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,605,836.80 : 122,351,938.56 = 36,142,986.24 : x
  2. Step 2: Convert to fraction form
    81,605,836.80/122,351,938.56 = 36,142,986.24/x
  3. Step 3: Cross multiply
    81,605,836.80x = 122,351,938.56 × 36,142,986.24
  4. Step 4: Simplify right side
    81,605,836.80x = 4,422,164,431,811,406
  5. Step 5: Solve for x
    x = 4,422,164,431,811,406/81,605,836.80
  6. Step 6: Final answer
    x = 54,189,315.44

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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.