Finding the Fourth Proportional to 331,915,072.70, 497,872,609.05 and 178,860,064.70
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Solution
The fourth proportional to 331,915,072.70, 497,872,609.05 and 178,860,064.70 is: 268,290,097.05
Step by Step Solution
- Step 1: Write the proportion equation
331,915,072.70 : 497,872,609.05 = 178,860,064.70 : x - Step 2: Convert to fraction form
331,915,072.70/497,872,609.05 = 178,860,064.70/x - Step 3: Cross multiply
331,915,072.70x = 497,872,609.05 × 178,860,064.70 - Step 4: Simplify right side
331,915,072.70x = 89,049,527,067,040,800 - Step 5: Solve for x
x = 89,049,527,067,040,800/331,915,072.70 - Step 6: Final answer
x = 268,290,097.05
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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.