Home / 18,404,081.65-25,396,477.38-10,143,689.36

Finding the Fourth Proportional to 18,404,081.65, 25,396,477.38 and 10,143,689.36

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Solution

The fourth proportional to 18,404,081.65, 25,396,477.38 and 10,143,689.36 is: 13,997,654.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404,081.65 : 25,396,477.38 = 10,143,689.36 : x
  2. Step 2: Convert to fraction form
    18,404,081.65/25,396,477.38 = 10,143,689.36/x
  3. Step 3: Cross multiply
    18,404,081.65x = 25,396,477.38 × 10,143,689.36
  4. Step 4: Simplify right side
    18,404,081.65x = 257,613,977,380,986.66
  5. Step 5: Solve for x
    x = 257,613,977,380,986.66/18,404,081.65
  6. Step 6: Final answer
    x = 13,997,654.56

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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.