Finding the Fourth Proportional to 103,626,889.09, 142,945,157.86 and 66,957,460.09
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Solution
The fourth proportional to 103,626,889.09, 142,945,157.86 and 66,957,460.09 is: 92,362,559.43
Step by Step Solution
- Step 1: Write the proportion equation
103,626,889.09 : 142,945,157.86 = 66,957,460.09 : x - Step 2: Convert to fraction form
103,626,889.09/142,945,157.86 = 66,957,460.09/x - Step 3: Cross multiply
103,626,889.09x = 142,945,157.86 × 66,957,460.09 - Step 4: Simplify right side
103,626,889.09x = 9,571,244,702,469,702 - Step 5: Solve for x
x = 9,571,244,702,469,702/103,626,889.09 - Step 6: Final answer
x = 92,362,559.43
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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.