Finding the Fourth Proportional to 122,207,872.00, 168,650,059.59 and 66,456,553.09
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Solution
The fourth proportional to 122,207,872.00, 168,650,059.59 and 66,456,553.09 is: 91,711,781.37
Step by Step Solution
- Step 1: Write the proportion equation
122,207,872.00 : 168,650,059.59 = 66,456,553.09 : x - Step 2: Convert to fraction form
122,207,872.00/168,650,059.59 = 66,456,553.09/x - Step 3: Cross multiply
122,207,872.00x = 168,650,059.59 × 66,456,553.09 - Step 4: Simplify right side
122,207,872.00x = 11,207,901,638,352,874 - Step 5: Solve for x
x = 11,207,901,638,352,874/122,207,872.00 - Step 6: Final answer
x = 91,711,781.37
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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.