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Finding the Third Proportional to 221,018,289 and 481,247,454

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Solution

The third proportional to 221,018,289 and 481,247,454 is: 1,047,873,065.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,018,289 : 481,247,454 = 481,247,454 : x
  2. Step 2: Convert to fraction form
    221,018,289/481,247,454 = 481,247,454/x
  3. Step 3: Cross multiply
    221,018,289x = 481,247,454 × 481,247,454
  4. Step 4: Simplify right side
    221,018,289x = 231,599,111,981,482,112
  5. Step 5: Solve for x
    x = 231,599,111,981,482,112/221,018,289
  6. Step 6: Final answer
    x = 1,047,873,065.30

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.