Home / 12,768,766.98-17,620,942.95-6,967,676.58

Finding the Fourth Proportional to 12,768,766.98, 17,620,942.95 and 6,967,676.58

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Solution

The fourth proportional to 12,768,766.98, 17,620,942.95 and 6,967,676.58 is: 9,615,417.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,766.98 : 17,620,942.95 = 6,967,676.58 : x
  2. Step 2: Convert to fraction form
    12,768,766.98/17,620,942.95 = 6,967,676.58/x
  3. Step 3: Cross multiply
    12,768,766.98x = 17,620,942.95 × 6,967,676.58
  4. Step 4: Simplify right side
    12,768,766.98x = 122,777,031,510,231.11
  5. Step 5: Solve for x
    x = 122,777,031,510,231.11/12,768,766.98
  6. Step 6: Final answer
    x = 9,615,417.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.