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Finding the Third Proportional to 90,546,149 and 196,404,430

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Solution

The third proportional to 90,546,149 and 196,404,430 is: 426,022,537.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,546,149 : 196,404,430 = 196,404,430 : x
  2. Step 2: Convert to fraction form
    90,546,149/196,404,430 = 196,404,430/x
  3. Step 3: Cross multiply
    90,546,149x = 196,404,430 × 196,404,430
  4. Step 4: Simplify right side
    90,546,149x = 38,574,700,123,624,896
  5. Step 5: Solve for x
    x = 38,574,700,123,624,896/90,546,149
  6. Step 6: Final answer
    x = 426,022,537.12

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.