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Finding the Third Proportional to 9,970,137.50 and 21,689,875

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Solution

The third proportional to 9,970,137.50 and 21,689,875 is: 47,185,976.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,970,137.50 : 21,689,875 = 21,689,875 : x
  2. Step 2: Convert to fraction form
    9,970,137.50/21,689,875 = 21,689,875/x
  3. Step 3: Cross multiply
    9,970,137.50x = 21,689,875 × 21,689,875
  4. Step 4: Simplify right side
    9,970,137.50x = 470,450,677,515,625
  5. Step 5: Solve for x
    x = 470,450,677,515,625/9,970,137.50
  6. Step 6: Final answer
    x = 47,185,976.88

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.