Home / 13,189,548.68-18,201,377.37-7,388,538.06

Finding the Fourth Proportional to 13,189,548.68, 18,201,377.37 and 7,388,538.06

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Solution

The fourth proportional to 13,189,548.68, 18,201,377.37 and 7,388,538.06 is: 10,196,070.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189,548.68 : 18,201,377.37 = 7,388,538.06 : x
  2. Step 2: Convert to fraction form
    13,189,548.68/18,201,377.37 = 7,388,538.06/x
  3. Step 3: Cross multiply
    13,189,548.68x = 18,201,377.37 × 7,388,538.06
  4. Step 4: Simplify right side
    13,189,548.68x = 134,481,569,442,667.70
  5. Step 5: Solve for x
    x = 134,481,569,442,667.70/13,189,548.68
  6. Step 6: Final answer
    x = 10,196,070.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.