Finding the Fourth Proportional to 254,876,789.67, 351,512,664.07 and 215,377,207.71
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Solution
The fourth proportional to 254,876,789.67, 351,512,664.07 and 215,377,207.71 is: 297,036,917.95
Step by Step Solution
- Step 1: Write the proportion equation
254,876,789.67 : 351,512,664.07 = 215,377,207.71 : x - Step 2: Convert to fraction form
254,876,789.67/351,512,664.07 = 215,377,207.71/x - Step 3: Cross multiply
254,876,789.67x = 351,512,664.07 × 215,377,207.71 - Step 4: Simplify right side
254,876,789.67x = 75,707,816,060,645,984 - Step 5: Solve for x
x = 75,707,816,060,645,984/254,876,789.67 - Step 6: Final answer
x = 297,036,917.95
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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.