Home / 12,880,328.53-19,322,405.73-4,242,833.54

Finding the Fourth Proportional to 12,880,328.53, 19,322,405.73 and 4,242,833.54

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Solution

The fourth proportional to 12,880,328.53, 19,322,405.73 and 4,242,833.54 is: 6,364,880.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880,328.53 : 19,322,405.73 = 4,242,833.54 : x
  2. Step 2: Convert to fraction form
    12,880,328.53/19,322,405.73 = 4,242,833.54/x
  3. Step 3: Cross multiply
    12,880,328.53x = 19,322,405.73 × 4,242,833.54
  4. Step 4: Simplify right side
    12,880,328.53x = 81,981,751,008,120.16
  5. Step 5: Solve for x
    x = 81,981,751,008,120.16/12,880,328.53
  6. Step 6: Final answer
    x = 6,364,880.43

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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.