Home / 40,747,679.12-61,114,873.80-11,987,087.60

Finding the Fourth Proportional to 40,747,679.12, 61,114,873.80 and 11,987,087.60

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Solution

The fourth proportional to 40,747,679.12, 61,114,873.80 and 11,987,087.60 is: 17,978,676.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,747,679.12 : 61,114,873.80 = 11,987,087.60 : x
  2. Step 2: Convert to fraction form
    40,747,679.12/61,114,873.80 = 11,987,087.60/x
  3. Step 3: Cross multiply
    40,747,679.12x = 61,114,873.80 × 11,987,087.60
  4. Step 4: Simplify right side
    40,747,679.12x = 732,589,345,903,544.88
  5. Step 5: Solve for x
    x = 732,589,345,903,544.88/40,747,679.12
  6. Step 6: Final answer
    x = 17,978,676.62

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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.