Home / 12,060,519.60-18,059,286.60-7,777,498.80

Finding the Fourth Proportional to 12,060,519.60, 18,059,286.60 and 7,777,498.80

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Solution

The fourth proportional to 12,060,519.60, 18,059,286.60 and 7,777,498.80 is: 11,645,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,060,519.60 : 18,059,286.60 = 7,777,498.80 : x
  2. Step 2: Convert to fraction form
    12,060,519.60/18,059,286.60 = 7,777,498.80/x
  3. Step 3: Cross multiply
    12,060,519.60x = 18,059,286.60 × 7,777,498.80
  4. Step 4: Simplify right side
    12,060,519.60x = 140,456,079,860,356.09
  5. Step 5: Solve for x
    x = 140,456,079,860,356.09/12,060,519.60
  6. Step 6: Final answer
    x = 11,645,939.36

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1.5x scale

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.