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Finding the Third Proportional to 8,972,074 and 19,681,155

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Solution

The third proportional to 8,972,074 and 19,681,155 is: 43,172,611.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972,074 : 19,681,155 = 19,681,155 : x
  2. Step 2: Convert to fraction form
    8,972,074/19,681,155 = 19,681,155/x
  3. Step 3: Cross multiply
    8,972,074x = 19,681,155 × 19,681,155
  4. Step 4: Simplify right side
    8,972,074x = 387,347,862,134,025
  5. Step 5: Solve for x
    x = 387,347,862,134,025/8,972,074
  6. Step 6: Final answer
    x = 43,172,611.16

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.