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Finding the Third Proportional to 13,161,312 and 19,907,888

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Solution

The third proportional to 13,161,312 and 19,907,888 is: 30,112,803.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161,312 : 19,907,888 = 19,907,888 : x
  2. Step 2: Convert to fraction form
    13,161,312/19,907,888 = 19,907,888/x
  3. Step 3: Cross multiply
    13,161,312x = 19,907,888 × 19,907,888
  4. Step 4: Simplify right side
    13,161,312x = 396,324,004,620,544
  5. Step 5: Solve for x
    x = 396,324,004,620,544/13,161,312
  6. Step 6: Final answer
    x = 30,112,803.69

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.