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Finding the Third Proportional to 17,991,178 and 27,636,421

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Solution

The third proportional to 17,991,178 and 27,636,421 is: 42,452,571.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,991,178 : 27,636,421 = 27,636,421 : x
  2. Step 2: Convert to fraction form
    17,991,178/27,636,421 = 27,636,421/x
  3. Step 3: Cross multiply
    17,991,178x = 27,636,421 × 27,636,421
  4. Step 4: Simplify right side
    17,991,178x = 763,771,765,689,241
  5. Step 5: Solve for x
    x = 763,771,765,689,241/17,991,178
  6. Step 6: Final answer
    x = 42,452,571.24

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.