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Finding the Third Proportional to 19,869,471 and 29,149,929

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Solution

The third proportional to 19,869,471 and 29,149,929 is: 42,765,021.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869,471 : 29,149,929 = 29,149,929 : x
  2. Step 2: Convert to fraction form
    19,869,471/29,149,929 = 29,149,929/x
  3. Step 3: Cross multiply
    19,869,471x = 29,149,929 × 29,149,929
  4. Step 4: Simplify right side
    19,869,471x = 849,718,360,705,041
  5. Step 5: Solve for x
    x = 849,718,360,705,041/19,869,471
  6. Step 6: Final answer
    x = 42,765,021.81

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.