Finding the Fourth Proportional to 122,207,872.37, 168,650,060.11 and 66,456,553.46
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Solution
The fourth proportional to 122,207,872.37, 168,650,060.11 and 66,456,553.46 is: 91,711,781.89
Step by Step Solution
- Step 1: Write the proportion equation
122,207,872.37 : 168,650,060.11 = 66,456,553.46 : x - Step 2: Convert to fraction form
122,207,872.37/168,650,060.11 = 66,456,553.46/x - Step 3: Cross multiply
122,207,872.37x = 168,650,060.11 × 66,456,553.46 - Step 4: Simplify right side
122,207,872.37x = 11,207,901,735,987,912 - Step 5: Solve for x
x = 11,207,901,735,987,912/122,207,872.37 - Step 6: Final answer
x = 91,711,781.89
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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.