Finding the Fourth Proportional to 1,991,342,351.80, 2,987,013,527.70 and 1,794,071,452.60
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Solution
The fourth proportional to 1,991,342,351.80, 2,987,013,527.70 and 1,794,071,452.60 is: 2,691,107,178.90
Step by Step Solution
- Step 1: Write the proportion equation
1,991,342,351.80 : 2,987,013,527.70 = 1,794,071,452.60 : x - Step 2: Convert to fraction form
1,991,342,351.80/2,987,013,527.70 = 1,794,071,452.60/x - Step 3: Cross multiply
1,991,342,351.80x = 2,987,013,527.70 × 1,794,071,452.60 - Step 4: Simplify right side
1,991,342,351.80x = 5,358,915,698,576,588,800 - Step 5: Solve for x
x = 5,358,915,698,576,588,800/1,991,342,351.80 - Step 6: Final answer
x = 2,691,107,178.90
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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.