Finding the Fourth Proportional to 7,471,631.40, 11,207,447.10 and 4,448,322.60
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Solution
The fourth proportional to 7,471,631.40, 11,207,447.10 and 4,448,322.60 is: 6,672,483.90
Step by Step Solution
- Step 1: Write the proportion equation
7,471,631.40 : 11,207,447.10 = 4,448,322.60 : x - Step 2: Convert to fraction form
7,471,631.40/11,207,447.10 = 4,448,322.60/x - Step 3: Cross multiply
7,471,631.40x = 11,207,447.10 × 4,448,322.60 - Step 4: Simplify right side
7,471,631.40x = 49,854,340,223,234.45 - Step 5: Solve for x
x = 49,854,340,223,234.45/7,471,631.40 - Step 6: Final answer
x = 6,672,483.90
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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.