Finding the Fourth Proportional to 8,257,958.10, 12,386,937.15 and 5,388,176.70
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Solution
The fourth proportional to 8,257,958.10, 12,386,937.15 and 5,388,176.70 is: 8,082,265.05
Step by Step Solution
- Step 1: Write the proportion equation
8,257,958.10 : 12,386,937.15 = 5,388,176.70 : x - Step 2: Convert to fraction form
8,257,958.10/12,386,937.15 = 5,388,176.70/x - Step 3: Cross multiply
8,257,958.10x = 12,386,937.15 × 5,388,176.70 - Step 4: Simplify right side
8,257,958.10x = 66,743,006,135,994.41 - Step 5: Solve for x
x = 66,743,006,135,994.41/8,257,958.10 - Step 6: Final answer
x = 8,082,265.05
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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.