Home / 72,005,997.83-107,996,824.73-20,178,681.27

Finding the Fourth Proportional to 72,005,997.83, 107,996,824.73 and 20,178,681.27

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Solution

The fourth proportional to 72,005,997.83, 107,996,824.73 and 20,178,681.27 is: 30,264,610.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,005,997.83 : 107,996,824.73 = 20,178,681.27 : x
  2. Step 2: Convert to fraction form
    72,005,997.83/107,996,824.73 = 20,178,681.27/x
  3. Step 3: Cross multiply
    72,005,997.83x = 107,996,824.73 × 20,178,681.27
  4. Step 4: Simplify right side
    72,005,997.83x = 2,179,233,504,297,830.25
  5. Step 5: Solve for x
    x = 2,179,233,504,297,830.25/72,005,997.83
  6. Step 6: Final answer
    x = 30,264,610.87

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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.