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Finding the Third Proportional to 15,259,568 and 21,386,260

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Solution

The third proportional to 15,259,568 and 21,386,260 is: 29,972,808.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,259,568 : 21,386,260 = 21,386,260 : x
  2. Step 2: Convert to fraction form
    15,259,568/21,386,260 = 21,386,260/x
  3. Step 3: Cross multiply
    15,259,568x = 21,386,260 × 21,386,260
  4. Step 4: Simplify right side
    15,259,568x = 457,372,116,787,600
  5. Step 5: Solve for x
    x = 457,372,116,787,600/15,259,568
  6. Step 6: Final answer
    x = 29,972,808.98

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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.