Finding the Fourth Proportional to 228,568,916.53, 315,419,739.69 and 134,489,157.12
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Solution
The fourth proportional to 228,568,916.53, 315,419,739.69 and 134,489,157.12 is: 185,591,880.00
Step by Step Solution
- Step 1: Write the proportion equation
228,568,916.53 : 315,419,739.69 = 134,489,157.12 : x - Step 2: Convert to fraction form
228,568,916.53/315,419,739.69 = 134,489,157.12/x - Step 3: Cross multiply
228,568,916.53x = 315,419,739.69 × 134,489,157.12 - Step 4: Simplify right side
228,568,916.53x = 42,420,534,929,073,432 - Step 5: Solve for x
x = 42,420,534,929,073,432/228,568,916.53 - Step 6: Final answer
x = 185,591,880.00
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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.