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Finding the Third Proportional to 30,246,520 and 66,371,696

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Solution

The third proportional to 30,246,520 and 66,371,696 is: 145,643,268.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,246,520 : 66,371,696 = 66,371,696 : x
  2. Step 2: Convert to fraction form
    30,246,520/66,371,696 = 66,371,696/x
  3. Step 3: Cross multiply
    30,246,520x = 66,371,696 × 66,371,696
  4. Step 4: Simplify right side
    30,246,520x = 4,405,202,029,916,416
  5. Step 5: Solve for x
    x = 4,405,202,029,916,416/30,246,520
  6. Step 6: Final answer
    x = 145,643,268.38

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.