Home / 12,519,631.58-18,777,279-3,765,783.38

Finding the Fourth Proportional to 12,519,631.58, 18,777,279 and 3,765,783.38

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Solution

The fourth proportional to 12,519,631.58, 18,777,279 and 3,765,783.38 is: 5,648,022.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519,631.58 : 18,777,279 = 3,765,783.38 : x
  2. Step 2: Convert to fraction form
    12,519,631.58/18,777,279 = 3,765,783.38/x
  3. Step 3: Cross multiply
    12,519,631.58x = 18,777,279 × 3,765,783.38
  4. Step 4: Simplify right side
    12,519,631.58x = 70,711,165,179,823.02
  5. Step 5: Solve for x
    x = 70,711,165,179,823.02/12,519,631.58
  6. Step 6: Final answer
    x = 5,648,022.85

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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.