Finding the Fourth Proportional to 5,078,736.24, 7,009,091.28 and 2,787,339.84
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Solution
The fourth proportional to 5,078,736.24, 7,009,091.28 and 2,787,339.84 is: 3,846,767.87
Step by Step Solution
- Step 1: Write the proportion equation
5,078,736.24 : 7,009,091.28 = 2,787,339.84 : x - Step 2: Convert to fraction form
5,078,736.24/7,009,091.28 = 2,787,339.84/x - Step 3: Cross multiply
5,078,736.24x = 7,009,091.28 × 2,787,339.84 - Step 4: Simplify right side
5,078,736.24x = 19,536,719,366,940.59 - Step 5: Solve for x
x = 19,536,719,366,940.59/5,078,736.24 - Step 6: Final answer
x = 3,846,767.87
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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.