Home / 12,660,009.21-18,967,181.52-7,793,846.73

Finding the Fourth Proportional to 12,660,009.21, 18,967,181.52 and 7,793,846.73

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Solution

The fourth proportional to 12,660,009.21, 18,967,181.52 and 7,793,846.73 is: 11,676,713.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660,009.21 : 18,967,181.52 = 7,793,846.73 : x
  2. Step 2: Convert to fraction form
    12,660,009.21/18,967,181.52 = 7,793,846.73/x
  3. Step 3: Cross multiply
    12,660,009.21x = 18,967,181.52 × 7,793,846.73
  4. Step 4: Simplify right side
    12,660,009.21x = 147,827,305,666,968.44
  5. Step 5: Solve for x
    x = 147,827,305,666,968.44/12,660,009.21
  6. Step 6: Final answer
    x = 11,676,713.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.