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Finding the Third Proportional to 100,214,694 and 209,592,364

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Solution

The third proportional to 100,214,694 and 209,592,364 is: 438,348,482.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,214,694 : 209,592,364 = 209,592,364 : x
  2. Step 2: Convert to fraction form
    100,214,694/209,592,364 = 209,592,364/x
  3. Step 3: Cross multiply
    100,214,694x = 209,592,364 × 209,592,364
  4. Step 4: Simplify right side
    100,214,694x = 43,928,959,047,108,496
  5. Step 5: Solve for x
    x = 43,928,959,047,108,496/100,214,694
  6. Step 6: Final answer
    x = 438,348,482.58

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.