Finding the Fourth Proportional to 7,465,139.80, 11,197,709.70 and 3,686,003.80
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Solution
The fourth proportional to 7,465,139.80, 11,197,709.70 and 3,686,003.80 is: 5,529,005.70
Step by Step Solution
- Step 1: Write the proportion equation
7,465,139.80 : 11,197,709.70 = 3,686,003.80 : x - Step 2: Convert to fraction form
7,465,139.80/11,197,709.70 = 3,686,003.80/x - Step 3: Cross multiply
7,465,139.80x = 11,197,709.70 × 3,686,003.80 - Step 4: Simplify right side
7,465,139.80x = 41,274,800,505,496.85 - Step 5: Solve for x
x = 41,274,800,505,496.85/7,465,139.80 - Step 6: Final answer
x = 5,529,005.70
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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.