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Finding the Third Proportional to 12,699,378 and 19,168,056

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Solution

The third proportional to 12,699,378 and 19,168,056 is: 28,931,682.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699,378 : 19,168,056 = 19,168,056 : x
  2. Step 2: Convert to fraction form
    12,699,378/19,168,056 = 19,168,056/x
  3. Step 3: Cross multiply
    12,699,378x = 19,168,056 × 19,168,056
  4. Step 4: Simplify right side
    12,699,378x = 367,414,370,819,136
  5. Step 5: Solve for x
    x = 367,414,370,819,136/12,699,378
  6. Step 6: Final answer
    x = 28,931,682.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.