Finding the Fourth Proportional to 354,296,082.80, 531,444,124.20 and 199,327,887.20
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Solution
The fourth proportional to 354,296,082.80, 531,444,124.20 and 199,327,887.20 is: 298,991,830.80
Step by Step Solution
- Step 1: Write the proportion equation
354,296,082.80 : 531,444,124.20 = 199,327,887.20 : x - Step 2: Convert to fraction form
354,296,082.80/531,444,124.20 = 199,327,887.20/x - Step 3: Cross multiply
354,296,082.80x = 531,444,124.20 × 199,327,887.20 - Step 4: Simplify right side
354,296,082.80x = 105,931,634,441,640,384 - Step 5: Solve for x
x = 105,931,634,441,640,384/354,296,082.80 - Step 6: Final answer
x = 298,991,830.80
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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.