Finding the Fourth Proportional to 187,827,319.80, 281,740,979.70 and 130,431,691.80
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Solution
The fourth proportional to 187,827,319.80, 281,740,979.70 and 130,431,691.80 is: 195,647,537.70
Step by Step Solution
- Step 1: Write the proportion equation
187,827,319.80 : 281,740,979.70 = 130,431,691.80 : x - Step 2: Convert to fraction form
187,827,319.80/281,740,979.70 = 130,431,691.80/x - Step 3: Cross multiply
187,827,319.80x = 281,740,979.70 × 130,431,691.80 - Step 4: Simplify right side
187,827,319.80x = 36,747,952,631,660,456 - Step 5: Solve for x
x = 36,747,952,631,660,456/187,827,319.80 - Step 6: Final answer
x = 195,647,537.70
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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.