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Finding the Third Proportional to 422,619,545 and 915,590,020

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Solution

The third proportional to 422,619,545 and 915,590,020 is: 1,983,592,795.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,619,545 : 915,590,020 = 915,590,020 : x
  2. Step 2: Convert to fraction form
    422,619,545/915,590,020 = 915,590,020/x
  3. Step 3: Cross multiply
    422,619,545x = 915,590,020 × 915,590,020
  4. Step 4: Simplify right side
    422,619,545x = 838,305,084,723,600,384
  5. Step 5: Solve for x
    x = 838,305,084,723,600,384/422,619,545
  6. Step 6: Final answer
    x = 1,983,592,795.56

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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.