Finding the Fourth Proportional to 18,102,578.36, 27,135,931.70 and 8,500,768.70
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Solution
The fourth proportional to 18,102,578.36, 27,135,931.70 and 8,500,768.70 is: 12,742,730.58
Step by Step Solution
- Step 1: Write the proportion equation
18,102,578.36 : 27,135,931.70 = 8,500,768.70 : x - Step 2: Convert to fraction form
18,102,578.36/27,135,931.70 = 8,500,768.70/x - Step 3: Cross multiply
18,102,578.36x = 27,135,931.70 × 8,500,768.70 - Step 4: Simplify right side
18,102,578.36x = 230,676,278,840,697.75 - Step 5: Solve for x
x = 230,676,278,840,697.75/18,102,578.36 - Step 6: Final answer
x = 12,742,730.58
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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.