Finding the Fourth Proportional to 261,649,407.67, 361,059,910.74 and 144,168,163.54
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Solution
The fourth proportional to 261,649,407.67, 361,059,910.74 and 144,168,163.54 is: 198,943,099.94
Step by Step Solution
- Step 1: Write the proportion equation
261,649,407.67 : 361,059,910.74 = 144,168,163.54 : x - Step 2: Convert to fraction form
261,649,407.67/361,059,910.74 = 144,168,163.54/x - Step 3: Cross multiply
261,649,407.67x = 361,059,910.74 × 144,168,163.54 - Step 4: Simplify right side
261,649,407.67x = 52,053,344,259,302,120 - Step 5: Solve for x
x = 52,053,344,259,302,120/261,649,407.67 - Step 6: Final answer
x = 198,943,099.94
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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.