Finding the Fourth Proportional to 431,796,348.70, 647,694,523.05 and 286,394,091.10
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Solution
The fourth proportional to 431,796,348.70, 647,694,523.05 and 286,394,091.10 is: 429,591,136.65
Step by Step Solution
- Step 1: Write the proportion equation
431,796,348.70 : 647,694,523.05 = 286,394,091.10 : x - Step 2: Convert to fraction form
431,796,348.70/647,694,523.05 = 286,394,091.10/x - Step 3: Cross multiply
431,796,348.70x = 647,694,523.05 × 286,394,091.10 - Step 4: Simplify right side
431,796,348.70x = 185,495,884,239,352,736 - Step 5: Solve for x
x = 185,495,884,239,352,736/431,796,348.70 - Step 6: Final answer
x = 429,591,136.65
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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.