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Finding the Third Proportional to 9,139,389 and 19,707,027

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Solution

The third proportional to 9,139,389 and 19,707,027 is: 42,493,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139,389 : 19,707,027 = 19,707,027 : x
  2. Step 2: Convert to fraction form
    9,139,389/19,707,027 = 19,707,027/x
  3. Step 3: Cross multiply
    9,139,389x = 19,707,027 × 19,707,027
  4. Step 4: Simplify right side
    9,139,389x = 388,366,913,178,729
  5. Step 5: Solve for x
    x = 388,366,913,178,729/9,139,389
  6. Step 6: Final answer
    x = 42,493,750.20

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.