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Finding the Fourth Proportional to 17,978,476.56, 26,968,501.80 and 5,200,272.96

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Solution

The fourth proportional to 17,978,476.56, 26,968,501.80 and 5,200,272.96 is: 7,800,637.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,978,476.56 : 26,968,501.80 = 5,200,272.96 : x
  2. Step 2: Convert to fraction form
    17,978,476.56/26,968,501.80 = 5,200,272.96/x
  3. Step 3: Cross multiply
    17,978,476.56x = 26,968,501.80 × 5,200,272.96
  4. Step 4: Simplify right side
    17,978,476.56x = 140,243,570,682,251.33
  5. Step 5: Solve for x
    x = 140,243,570,682,251.33/17,978,476.56
  6. Step 6: Final answer
    x = 7,800,637.07

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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.