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Finding the Third Proportional to 13,212,370 and 20,213,437

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Solution

The third proportional to 13,212,370 and 20,213,437 is: 30,924,280.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212,370 : 20,213,437 = 20,213,437 : x
  2. Step 2: Convert to fraction form
    13,212,370/20,213,437 = 20,213,437/x
  3. Step 3: Cross multiply
    13,212,370x = 20,213,437 × 20,213,437
  4. Step 4: Simplify right side
    13,212,370x = 408,583,035,352,969
  5. Step 5: Solve for x
    x = 408,583,035,352,969/13,212,370
  6. Step 6: Final answer
    x = 30,924,280.45

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.