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Finding the Third Proportional to 20,918,178 and 45,197,546

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Solution

The third proportional to 20,918,178 and 45,197,546 is: 97,657,557.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,918,178 : 45,197,546 = 45,197,546 : x
  2. Step 2: Convert to fraction form
    20,918,178/45,197,546 = 45,197,546/x
  3. Step 3: Cross multiply
    20,918,178x = 45,197,546 × 45,197,546
  4. Step 4: Simplify right side
    20,918,178x = 2,042,818,164,422,116
  5. Step 5: Solve for x
    x = 2,042,818,164,422,116/20,918,178
  6. Step 6: Final answer
    x = 97,657,557.19

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.