Home / 12,170,526.72-18,259,610.04-7,318,419.36

Finding the Fourth Proportional to 12,170,526.72, 18,259,610.04 and 7,318,419.36

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Solution

The fourth proportional to 12,170,526.72, 18,259,610.04 and 7,318,419.36 is: 10,979,926.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170,526.72 : 18,259,610.04 = 7,318,419.36 : x
  2. Step 2: Convert to fraction form
    12,170,526.72/18,259,610.04 = 7,318,419.36/x
  3. Step 3: Cross multiply
    12,170,526.72x = 18,259,610.04 × 7,318,419.36
  4. Step 4: Simplify right side
    12,170,526.72x = 133,631,483,622,786.38
  5. Step 5: Solve for x
    x = 133,631,483,622,786.38/12,170,526.72
  6. Step 6: Final answer
    x = 10,979,926.07

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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.