Finding the Fourth Proportional to 7,782,406.05, 11,678,158.05 and 5,621,300.13
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Solution
The fourth proportional to 7,782,406.05, 11,678,158.05 and 5,621,300.13 is: 8,435,235.96
Step by Step Solution
- Step 1: Write the proportion equation
7,782,406.05 : 11,678,158.05 = 5,621,300.13 : x - Step 2: Convert to fraction form
7,782,406.05/11,678,158.05 = 5,621,300.13/x - Step 3: Cross multiply
7,782,406.05x = 11,678,158.05 × 5,621,300.13 - Step 4: Simplify right side
7,782,406.05x = 65,646,431,364,625.55 - Step 5: Solve for x
x = 65,646,431,364,625.55/7,782,406.05 - Step 6: Final answer
x = 8,435,235.96
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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.