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Finding the Third Proportional to 12,531,388.94 and 19,939,903.88

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Solution

The third proportional to 12,531,388.94 and 19,939,903.88 is: 31,728,307.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531,388.94 : 19,939,903.88 = 19,939,903.88 : x
  2. Step 2: Convert to fraction form
    12,531,388.94/19,939,903.88 = 19,939,903.88/x
  3. Step 3: Cross multiply
    12,531,388.94x = 19,939,903.88 × 19,939,903.88
  4. Step 4: Simplify right side
    12,531,388.94x = 397,599,766,544,240
  5. Step 5: Solve for x
    x = 397,599,766,544,240/12,531,388.94
  6. Step 6: Final answer
    x = 31,728,307.89

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.