Finding the Fourth Proportional to 245,145,942.09, 367,827,218.64 and 128,533,418.10
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Solution
The fourth proportional to 245,145,942.09, 367,827,218.64 and 128,533,418.10 is: 192,856,913.23
Step by Step Solution
- Step 1: Write the proportion equation
245,145,942.09 : 367,827,218.64 = 128,533,418.10 : x - Step 2: Convert to fraction form
245,145,942.09/367,827,218.64 = 128,533,418.10/x - Step 3: Cross multiply
245,145,942.09x = 367,827,218.64 × 128,533,418.10 - Step 4: Simplify right side
245,145,942.09x = 47,278,089,682,015,232 - Step 5: Solve for x
x = 47,278,089,682,015,232/245,145,942.09 - Step 6: Final answer
x = 192,856,913.23
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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.