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Finding the Third Proportional to 18,615,690,858 and 26,121,499,428

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Solution

The third proportional to 18,615,690,858 and 26,121,499,428 is: 36,653,634,698.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,615,690,858 : 26,121,499,428 = 26,121,499,428 : x
  2. Step 2: Convert to fraction form
    18,615,690,858/26,121,499,428 = 26,121,499,428/x
  3. Step 3: Cross multiply
    18,615,690,858x = 26,121,499,428 × 26,121,499,428
  4. Step 4: Simplify right side
    18,615,690,858x = 682,332,732,367,004,368,896
  5. Step 5: Solve for x
    x = 682,332,732,367,004,368,896/18,615,690,858
  6. Step 6: Final answer
    x = 36,653,634,698.37

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.