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Finding the Third Proportional to 8,408,890.50 and 12,985,989

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Solution

The third proportional to 8,408,890.50 and 12,985,989 is: 20,054,478.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408,890.50 : 12,985,989 = 12,985,989 : x
  2. Step 2: Convert to fraction form
    8,408,890.50/12,985,989 = 12,985,989/x
  3. Step 3: Cross multiply
    8,408,890.50x = 12,985,989 × 12,985,989
  4. Step 4: Simplify right side
    8,408,890.50x = 168,635,910,308,121
  5. Step 5: Solve for x
    x = 168,635,910,308,121/8,408,890.50
  6. Step 6: Final answer
    x = 20,054,478.09

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.