Finding the Fourth Proportional to 5,378,423.28, 7,422,591.24 and 3,286,161.42
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Solution
The fourth proportional to 5,378,423.28, 7,422,591.24 and 3,286,161.42 is: 4,535,127.06
Step by Step Solution
- Step 1: Write the proportion equation
5,378,423.28 : 7,422,591.24 = 3,286,161.42 : x - Step 2: Convert to fraction form
5,378,423.28/7,422,591.24 = 3,286,161.42/x - Step 3: Cross multiply
5,378,423.28x = 7,422,591.24 × 3,286,161.42 - Step 4: Simplify right side
5,378,423.28x = 24,391,832,969,317.96 - Step 5: Solve for x
x = 24,391,832,969,317.96/5,378,423.28 - Step 6: Final answer
x = 4,535,127.06
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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.