Home / 13,019,652.72-19,535,777.64-7,968,207.60

Finding the Fourth Proportional to 13,019,652.72, 19,535,777.64 and 7,968,207.60

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Solution

The fourth proportional to 13,019,652.72, 19,535,777.64 and 7,968,207.60 is: 11,956,166.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019,652.72 : 19,535,777.64 = 7,968,207.60 : x
  2. Step 2: Convert to fraction form
    13,019,652.72/19,535,777.64 = 7,968,207.60/x
  3. Step 3: Cross multiply
    13,019,652.72x = 19,535,777.64 × 7,968,207.60
  4. Step 4: Simplify right side
    13,019,652.72x = 155,665,131,862,958.06
  5. Step 5: Solve for x
    x = 155,665,131,862,958.06/13,019,652.72
  6. Step 6: Final answer
    x = 11,956,166.21

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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.