Finding the Fourth Proportional to 311,265,688.91, 429,546,286.71 and 170,137,836.19
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Solution
The fourth proportional to 311,265,688.91, 429,546,286.71 and 170,137,836.19 is: 234,790,014.99
Step by Step Solution
- Step 1: Write the proportion equation
311,265,688.91 : 429,546,286.71 = 170,137,836.19 : x - Step 2: Convert to fraction form
311,265,688.91/429,546,286.71 = 170,137,836.19/x - Step 3: Cross multiply
311,265,688.91x = 429,546,286.71 × 170,137,836.19 - Step 4: Simplify right side
311,265,688.91x = 73,082,075,764,328,960 - Step 5: Solve for x
x = 73,082,075,764,328,960/311,265,688.91 - Step 6: Final answer
x = 234,790,014.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.