Finding the Fourth Proportional to 86,207,964.20, 129,330,608.70 and 25,629,813.80
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Solution
The fourth proportional to 86,207,964.20, 129,330,608.70 and 25,629,813.80 is: 38,450,269.07
Step by Step Solution
- Step 1: Write the proportion equation
86,207,964.20 : 129,330,608.70 = 25,629,813.80 : x - Step 2: Convert to fraction form
86,207,964.20/129,330,608.70 = 25,629,813.80/x - Step 3: Cross multiply
86,207,964.20x = 129,330,608.70 × 25,629,813.80 - Step 4: Simplify right side
86,207,964.20x = 3,314,719,419,621,660 - Step 5: Solve for x
x = 3,314,719,419,621,660/86,207,964.20 - Step 6: Final answer
x = 38,450,269.07
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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.