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Finding the Third Proportional to 8,731,749.38 and 18,368,339.63

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Solution

The third proportional to 8,731,749.38 and 18,368,339.63 is: 38,640,126.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731,749.38 : 18,368,339.63 = 18,368,339.63 : x
  2. Step 2: Convert to fraction form
    8,731,749.38/18,368,339.63 = 18,368,339.63/x
  3. Step 3: Cross multiply
    8,731,749.38x = 18,368,339.63 × 18,368,339.63
  4. Step 4: Simplify right side
    8,731,749.38x = 337,395,900,579,345.12
  5. Step 5: Solve for x
    x = 337,395,900,579,345.12/8,731,749.38
  6. Step 6: Final answer
    x = 38,640,126.52

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.