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Finding the Third Proportional to 98,728,999.50 and 212,629,947

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Solution

The third proportional to 98,728,999.50 and 212,629,947 is: 457,935,303.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,728,999.50 : 212,629,947 = 212,629,947 : x
  2. Step 2: Convert to fraction form
    98,728,999.50/212,629,947 = 212,629,947/x
  3. Step 3: Cross multiply
    98,728,999.50x = 212,629,947 × 212,629,947
  4. Step 4: Simplify right side
    98,728,999.50x = 45,211,494,361,222,808
  5. Step 5: Solve for x
    x = 45,211,494,361,222,808/98,728,999.50
  6. Step 6: Final answer
    x = 457,935,303.61

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.