Finding the Fourth Proportional to 199,478,193.05, 298,957,751.42 and 81,165,072.44
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Solution
The fourth proportional to 199,478,193.05, 298,957,751.42 and 81,165,072.44 is: 121,642,005.97
Step by Step Solution
- Step 1: Write the proportion equation
199,478,193.05 : 298,957,751.42 = 81,165,072.44 : x - Step 2: Convert to fraction form
199,478,193.05/298,957,751.42 = 81,165,072.44/x - Step 3: Cross multiply
199,478,193.05x = 298,957,751.42 × 81,165,072.44 - Step 4: Simplify right side
199,478,193.05x = 24,264,927,548,603,200 - Step 5: Solve for x
x = 24,264,927,548,603,200/199,478,193.05 - Step 6: Final answer
x = 121,642,005.97
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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.