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Finding the Third Proportional to 12,886,428 and 27,789,392

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Solution

The third proportional to 12,886,428 and 27,789,392 is: 59,927,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,428 : 27,789,392 = 27,789,392 : x
  2. Step 2: Convert to fraction form
    12,886,428/27,789,392 = 27,789,392/x
  3. Step 3: Cross multiply
    12,886,428x = 27,789,392 × 27,789,392
  4. Step 4: Simplify right side
    12,886,428x = 772,250,307,729,664
  5. Step 5: Solve for x
    x = 772,250,307,729,664/12,886,428
  6. Step 6: Final answer
    x = 59,927,414.15

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.