Home / 57,385,239.81-86,078,247.30-20,978,653.38

Finding the Fourth Proportional to 57,385,239.81, 86,078,247.30 and 20,978,653.38

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Solution

The fourth proportional to 57,385,239.81, 86,078,247.30 and 20,978,653.38 is: 31,468,121.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,385,239.81 : 86,078,247.30 = 20,978,653.38 : x
  2. Step 2: Convert to fraction form
    57,385,239.81/86,078,247.30 = 20,978,653.38/x
  3. Step 3: Cross multiply
    57,385,239.81x = 86,078,247.30 × 20,978,653.38
  4. Step 4: Simplify right side
    57,385,239.81x = 1,805,805,713,664,620.75
  5. Step 5: Solve for x
    x = 1,805,805,713,664,620.75/57,385,239.81
  6. Step 6: Final answer
    x = 31,468,121.76

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.