Home / 17,238,665.80-25,857,998.70-7,643,859.40

Finding the Fourth Proportional to 17,238,665.80, 25,857,998.70 and 7,643,859.40

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Solution

The fourth proportional to 17,238,665.80, 25,857,998.70 and 7,643,859.40 is: 11,465,789.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,238,665.80 : 25,857,998.70 = 7,643,859.40 : x
  2. Step 2: Convert to fraction form
    17,238,665.80/25,857,998.70 = 7,643,859.40/x
  3. Step 3: Cross multiply
    17,238,665.80x = 25,857,998.70 × 7,643,859.40
  4. Step 4: Simplify right side
    17,238,665.80x = 197,654,906,428,182.78
  5. Step 5: Solve for x
    x = 197,654,906,428,182.78/17,238,665.80
  6. Step 6: Final answer
    x = 11,465,789.10

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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.