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Finding the Third Proportional to 12,882,931 and 28,080,679

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Solution

The third proportional to 12,882,931 and 28,080,679 is: 61,206,920.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,882,931 : 28,080,679 = 28,080,679 : x
  2. Step 2: Convert to fraction form
    12,882,931/28,080,679 = 28,080,679/x
  3. Step 3: Cross multiply
    12,882,931x = 28,080,679 × 28,080,679
  4. Step 4: Simplify right side
    12,882,931x = 788,524,533,101,041
  5. Step 5: Solve for x
    x = 788,524,533,101,041/12,882,931
  6. Step 6: Final answer
    x = 61,206,920.47

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.