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Finding the Third Proportional to 90,569,682 and 198,932,148

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Solution

The third proportional to 90,569,682 and 198,932,148 is: 436,945,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,569,682 : 198,932,148 = 198,932,148 : x
  2. Step 2: Convert to fraction form
    90,569,682/198,932,148 = 198,932,148/x
  3. Step 3: Cross multiply
    90,569,682x = 198,932,148 × 198,932,148
  4. Step 4: Simplify right side
    90,569,682x = 39,573,999,507,893,904
  5. Step 5: Solve for x
    x = 39,573,999,507,893,904/90,569,682
  6. Step 6: Final answer
    x = 436,945,329.10

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.