Finding the Fourth Proportional to 919,924,371,163.80, 1,379,886,556,745.70 and 919,924,371,163.80
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Solution
The fourth proportional to 919,924,371,163.80, 1,379,886,556,745.70 and 919,924,371,163.80 is: 1,379,886,556,745.70
Step by Step Solution
- Step 1: Write the proportion equation
919,924,371,163.80 : 1,379,886,556,745.70 = 919,924,371,163.80 : x - Step 2: Convert to fraction form
919,924,371,163.80/1,379,886,556,745.70 = 919,924,371,163.80/x - Step 3: Cross multiply
919,924,371,163.80x = 1,379,886,556,745.70 × 919,924,371,163.80 - Step 4: Simplify right side
919,924,371,163.80x = 1,269,391,272,991,669,364,981,760 - Step 5: Solve for x
x = 1,269,391,272,991,669,364,981,760/919,924,371,163.80 - Step 6: Final answer
x = 1,379,886,556,745.70
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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.