Finding the Fourth Proportional to 5,638,867.39, 7,795,868.14 and 4,166,453.62
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Solution
The fourth proportional to 5,638,867.39, 7,795,868.14 and 4,166,453.62 is: 5,760,221.11
Step by Step Solution
- Step 1: Write the proportion equation
5,638,867.39 : 7,795,868.14 = 4,166,453.62 : x - Step 2: Convert to fraction form
5,638,867.39/7,795,868.14 = 4,166,453.62/x - Step 3: Cross multiply
5,638,867.39x = 7,795,868.14 × 4,166,453.62 - Step 4: Simplify right side
5,638,867.39x = 32,481,122,983,550.20 - Step 5: Solve for x
x = 32,481,122,983,550.20/5,638,867.39 - Step 6: Final answer
x = 5,760,221.11
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1.5x scale
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.