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Finding the Third Proportional to 298,266,129 and 648,160,942.50

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Solution

The third proportional to 298,266,129 and 648,160,942.50 is: 1,408,515,974.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,266,129 : 648,160,942.50 = 648,160,942.50 : x
  2. Step 2: Convert to fraction form
    298,266,129/648,160,942.50 = 648,160,942.50/x
  3. Step 3: Cross multiply
    298,266,129x = 648,160,942.50 × 648,160,942.50
  4. Step 4: Simplify right side
    298,266,129x = 420,112,607,382,488,320
  5. Step 5: Solve for x
    x = 420,112,607,382,488,320/298,266,129
  6. Step 6: Final answer
    x = 1,408,515,974.61

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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.