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Finding the Third Proportional to 1,778,686,105 and 3,863,566,615

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Solution

The third proportional to 1,778,686,105 and 3,863,566,615 is: 8,392,232,303.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,686,105 : 3,863,566,615 = 3,863,566,615 : x
  2. Step 2: Convert to fraction form
    1,778,686,105/3,863,566,615 = 3,863,566,615/x
  3. Step 3: Cross multiply
    1,778,686,105x = 3,863,566,615 × 3,863,566,615
  4. Step 4: Simplify right side
    1,778,686,105x = 14,927,146,988,542,558,208
  5. Step 5: Solve for x
    x = 14,927,146,988,542,558,208/1,778,686,105
  6. Step 6: Final answer
    x = 8,392,232,303.71

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.