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Finding the Third Proportional to 15,921,320 and 34,545,770

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Solution

The third proportional to 15,921,320 and 34,545,770 is: 74,956,738.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,921,320 : 34,545,770 = 34,545,770 : x
  2. Step 2: Convert to fraction form
    15,921,320/34,545,770 = 34,545,770/x
  3. Step 3: Cross multiply
    15,921,320x = 34,545,770 × 34,545,770
  4. Step 4: Simplify right side
    15,921,320x = 1,193,410,224,892,900
  5. Step 5: Solve for x
    x = 1,193,410,224,892,900/15,921,320
  6. Step 6: Final answer
    x = 74,956,738.82

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.