Home / 19,489,979.28-26,889,988.20-11,339,642.64

Finding the Fourth Proportional to 19,489,979.28, 26,889,988.20 and 11,339,642.64

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Solution

The fourth proportional to 19,489,979.28, 26,889,988.20 and 11,339,642.64 is: 15,645,109.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,489,979.28 : 26,889,988.20 = 11,339,642.64 : x
  2. Step 2: Convert to fraction form
    19,489,979.28/26,889,988.20 = 11,339,642.64/x
  3. Step 3: Cross multiply
    19,489,979.28x = 26,889,988.20 × 11,339,642.64
  4. Step 4: Simplify right side
    19,489,979.28x = 304,922,856,781,816.88
  5. Step 5: Solve for x
    x = 304,922,856,781,816.88/19,489,979.28
  6. Step 6: Final answer
    x = 15,645,109.34

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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.