Finding the Fourth Proportional to 793,252,419.86, 1,189,080,431.49 and 327,253,720.70
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Solution
The fourth proportional to 793,252,419.86, 1,189,080,431.49 and 327,253,720.70 is: 490,551,286.92
Step by Step Solution
- Step 1: Write the proportion equation
793,252,419.86 : 1,189,080,431.49 = 327,253,720.70 : x - Step 2: Convert to fraction form
793,252,419.86/1,189,080,431.49 = 327,253,720.70/x - Step 3: Cross multiply
793,252,419.86x = 1,189,080,431.49 × 327,253,720.70 - Step 4: Simplify right side
793,252,419.86x = 389,130,995,416,663,936 - Step 5: Solve for x
x = 389,130,995,416,663,936/793,252,419.86 - Step 6: Final answer
x = 490,551,286.92
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1.5x scale
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.