Finding the Fourth Proportional to 7,776,034.20, 11,664,051.30 and 7,209,163.80
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Solution
The fourth proportional to 7,776,034.20, 11,664,051.30 and 7,209,163.80 is: 10,813,745.70
Step by Step Solution
- Step 1: Write the proportion equation
7,776,034.20 : 11,664,051.30 = 7,209,163.80 : x - Step 2: Convert to fraction form
7,776,034.20/11,664,051.30 = 7,209,163.80/x - Step 3: Cross multiply
7,776,034.20x = 11,664,051.30 × 7,209,163.80 - Step 4: Simplify right side
7,776,034.20x = 84,088,056,393,302.94 - Step 5: Solve for x
x = 84,088,056,393,302.94/7,776,034.20 - Step 6: Final answer
x = 10,813,745.70
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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.