Finding the Fourth Proportional to 321,201,543.63, 443,403,370.24 and 202,298,880.49
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Solution
The fourth proportional to 321,201,543.63, 443,403,370.24 and 202,298,880.49 is: 279,263,930.03
Step by Step Solution
- Step 1: Write the proportion equation
321,201,543.63 : 443,403,370.24 = 202,298,880.49 : x - Step 2: Convert to fraction form
321,201,543.63/443,403,370.24 = 202,298,880.49/x - Step 3: Cross multiply
321,201,543.63x = 443,403,370.24 × 202,298,880.49 - Step 4: Simplify right side
321,201,543.63x = 89,700,005,407,061,616 - Step 5: Solve for x
x = 89,700,005,407,061,616/321,201,543.63 - Step 6: Final answer
x = 279,263,930.03
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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.