Finding the Fourth Proportional to 18,005,378.29, 27,008,138.36 and 4,358,502.77
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Solution
The fourth proportional to 18,005,378.29, 27,008,138.36 and 4,358,502.77 is: 6,537,771.32
Step by Step Solution
- Step 1: Write the proportion equation
18,005,378.29 : 27,008,138.36 = 4,358,502.77 : x - Step 2: Convert to fraction form
18,005,378.29/27,008,138.36 = 4,358,502.77/x - Step 3: Cross multiply
18,005,378.29x = 27,008,138.36 × 4,358,502.77 - Step 4: Simplify right side
18,005,378.29x = 117,715,045,730,458.81 - Step 5: Solve for x
x = 117,715,045,730,458.81/18,005,378.29 - Step 6: Final answer
x = 6,537,771.32
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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.