Home / 12,858,460.32-19,287,222.48-5,185,414.56

Finding the Fourth Proportional to 12,858,460.32, 19,287,222.48 and 5,185,414.56

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Solution

The fourth proportional to 12,858,460.32, 19,287,222.48 and 5,185,414.56 is: 7,777,933.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858,460.32 : 19,287,222.48 = 5,185,414.56 : x
  2. Step 2: Convert to fraction form
    12,858,460.32/19,287,222.48 = 5,185,414.56/x
  3. Step 3: Cross multiply
    12,858,460.32x = 19,287,222.48 × 5,185,414.56
  4. Step 4: Simplify right side
    12,858,460.32x = 100,012,244,269,751.30
  5. Step 5: Solve for x
    x = 100,012,244,269,751.30/12,858,460.32
  6. Step 6: Final answer
    x = 7,777,933.11

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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.