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Finding the Third Proportional to 15,481,804 and 21,653,886

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Solution

The third proportional to 15,481,804 and 21,653,886 is: 30,286,572.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,481,804 : 21,653,886 = 21,653,886 : x
  2. Step 2: Convert to fraction form
    15,481,804/21,653,886 = 21,653,886/x
  3. Step 3: Cross multiply
    15,481,804x = 21,653,886 × 21,653,886
  4. Step 4: Simplify right side
    15,481,804x = 468,890,778,900,996
  5. Step 5: Solve for x
    x = 468,890,778,900,996/15,481,804
  6. Step 6: Final answer
    x = 30,286,572.48

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.