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Finding the Third Proportional to 12,152,678 and 18,634,929

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Solution

The third proportional to 12,152,678 and 18,634,929 is: 28,574,819.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152,678 : 18,634,929 = 18,634,929 : x
  2. Step 2: Convert to fraction form
    12,152,678/18,634,929 = 18,634,929/x
  3. Step 3: Cross multiply
    12,152,678x = 18,634,929 × 18,634,929
  4. Step 4: Simplify right side
    12,152,678x = 347,260,578,835,041
  5. Step 5: Solve for x
    x = 347,260,578,835,041/12,152,678
  6. Step 6: Final answer
    x = 28,574,819.38

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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.