Finding the Fourth Proportional to 116,993,187.97, 161,448,626.29 and 64,781,102.62
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Solution
The fourth proportional to 116,993,187.97, 161,448,626.29 and 64,781,102.62 is: 89,396,829.08
Step by Step Solution
- Step 1: Write the proportion equation
116,993,187.97 : 161,448,626.29 = 64,781,102.62 : x - Step 2: Convert to fraction form
116,993,187.97/161,448,626.29 = 64,781,102.62/x - Step 3: Cross multiply
116,993,187.97x = 161,448,626.29 × 64,781,102.62 - Step 4: Simplify right side
116,993,187.97x = 10,458,820,028,347,870 - Step 5: Solve for x
x = 10,458,820,028,347,870/116,993,187.97 - Step 6: Final answer
x = 89,396,829.08
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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.