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Finding the Third Proportional to 279,646,110 and 420,636,694

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Solution

The third proportional to 279,646,110 and 420,636,694 is: 632,711,208.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,646,110 : 420,636,694 = 420,636,694 : x
  2. Step 2: Convert to fraction form
    279,646,110/420,636,694 = 420,636,694/x
  3. Step 3: Cross multiply
    279,646,110x = 420,636,694 × 420,636,694
  4. Step 4: Simplify right side
    279,646,110x = 176,935,228,339,249,632
  5. Step 5: Solve for x
    x = 176,935,228,339,249,632/279,646,110
  6. Step 6: Final answer
    x = 632,711,208.96

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.