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Finding the Third Proportional to 7,191,315 and 15,449,859

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Solution

The third proportional to 7,191,315 and 15,449,859 is: 33,192,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191,315 : 15,449,859 = 15,449,859 : x
  2. Step 2: Convert to fraction form
    7,191,315/15,449,859 = 15,449,859/x
  3. Step 3: Cross multiply
    7,191,315x = 15,449,859 × 15,449,859
  4. Step 4: Simplify right side
    7,191,315x = 238,698,143,119,881
  5. Step 5: Solve for x
    x = 238,698,143,119,881/7,191,315
  6. Step 6: Final answer
    x = 33,192,558.40

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.