Finding the Fourth Proportional to 693,622,564.08, 1,040,381,524.16 and 220,902,503.28
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Solution
The fourth proportional to 693,622,564.08, 1,040,381,524.16 and 220,902,503.28 is: 331,337,091.60
Step by Step Solution
- Step 1: Write the proportion equation
693,622,564.08 : 1,040,381,524.16 = 220,902,503.28 : x - Step 2: Convert to fraction form
693,622,564.08/1,040,381,524.16 = 220,902,503.28/x - Step 3: Cross multiply
693,622,564.08x = 1,040,381,524.16 × 220,902,503.28 - Step 4: Simplify right side
693,622,564.08x = 229,822,883,053,205,792 - Step 5: Solve for x
x = 229,822,883,053,205,792/693,622,564.08 - Step 6: Final answer
x = 331,337,091.60
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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.