Home / 12,185,745.75-16,818,181.47-7,777,374.33

Finding the Fourth Proportional to 12,185,745.75, 16,818,181.47 and 7,777,374.33

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Solution

The fourth proportional to 12,185,745.75, 16,818,181.47 and 7,777,374.33 is: 10,733,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,185,745.75 : 16,818,181.47 = 7,777,374.33 : x
  2. Step 2: Convert to fraction form
    12,185,745.75/16,818,181.47 = 7,777,374.33/x
  3. Step 3: Cross multiply
    12,185,745.75x = 16,818,181.47 × 7,777,374.33
  4. Step 4: Simplify right side
    12,185,745.75x = 130,801,292,842,059.66
  5. Step 5: Solve for x
    x = 130,801,292,842,059.66/12,185,745.75
  6. Step 6: Final answer
    x = 10,733,958.80

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1.5x scale

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.