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Finding the Third Proportional to 5,590,518 and 11,978,316

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Solution

The third proportional to 5,590,518 and 11,978,316 is: 25,664,894.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590,518 : 11,978,316 = 11,978,316 : x
  2. Step 2: Convert to fraction form
    5,590,518/11,978,316 = 11,978,316/x
  3. Step 3: Cross multiply
    5,590,518x = 11,978,316 × 11,978,316
  4. Step 4: Simplify right side
    5,590,518x = 143,480,054,195,856
  5. Step 5: Solve for x
    x = 143,480,054,195,856/5,590,518
  6. Step 6: Final answer
    x = 25,664,894.42

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.