Finding the Fourth Proportional to 86,290,453.38, 129,436,163.99 and 28,782,566.67
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Solution
The fourth proportional to 86,290,453.38, 129,436,163.99 and 28,782,566.67 is: 43,174,011.42
Step by Step Solution
- Step 1: Write the proportion equation
86,290,453.38 : 129,436,163.99 = 28,782,566.67 : x - Step 2: Convert to fraction form
86,290,453.38/129,436,163.99 = 28,782,566.67/x - Step 3: Cross multiply
86,290,453.38x = 129,436,163.99 × 28,782,566.67 - Step 4: Simplify right side
86,290,453.38x = 3,725,505,019,407,315.50 - Step 5: Solve for x
x = 3,725,505,019,407,315.50/86,290,453.38 - Step 6: Final answer
x = 43,174,011.42
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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.