Home / 19,489,981.28-26,889,990.96-11,339,644.64

Finding the Fourth Proportional to 19,489,981.28, 26,889,990.96 and 11,339,644.64

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Solution

The fourth proportional to 19,489,981.28, 26,889,990.96 and 11,339,644.64 is: 15,645,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,489,981.28 : 26,889,990.96 = 11,339,644.64 : x
  2. Step 2: Convert to fraction form
    19,489,981.28/26,889,990.96 = 11,339,644.64/x
  3. Step 3: Cross multiply
    19,489,981.28x = 26,889,990.96 × 11,339,644.64
  4. Step 4: Simplify right side
    19,489,981.28x = 304,922,941,859,212.50
  5. Step 5: Solve for x
    x = 304,922,941,859,212.50/19,489,981.28
  6. Step 6: Final answer
    x = 15,645,112.10

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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.