Home / 13,191,538.68-18,204,101.46-7,390,301.40

Finding the Fourth Proportional to 13,191,538.68, 18,204,101.46 and 7,390,301.40

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Solution

The fourth proportional to 13,191,538.68, 18,204,101.46 and 7,390,301.40 is: 10,198,491.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191,538.68 : 18,204,101.46 = 7,390,301.40 : x
  2. Step 2: Convert to fraction form
    13,191,538.68/18,204,101.46 = 7,390,301.40/x
  3. Step 3: Cross multiply
    13,191,538.68x = 18,204,101.46 × 7,390,301.40
  4. Step 4: Simplify right side
    13,191,538.68x = 134,533,796,505,580.06
  5. Step 5: Solve for x
    x = 134,533,796,505,580.06/13,191,538.68
  6. Step 6: Final answer
    x = 10,198,491.61

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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.