Finding the Fourth Proportional to 5,179,306.35, 7,771,198.37 and 2,780,349.51
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Solution
The fourth proportional to 5,179,306.35, 7,771,198.37 and 2,780,349.51 is: 4,171,726.12
Step by Step Solution
- Step 1: Write the proportion equation
5,179,306.35 : 7,771,198.37 = 2,780,349.51 : x - Step 2: Convert to fraction form
5,179,306.35/7,771,198.37 = 2,780,349.51/x - Step 3: Cross multiply
5,179,306.35x = 7,771,198.37 × 2,780,349.51 - Step 4: Simplify right side
5,179,306.35x = 21,606,647,566,240.55 - Step 5: Solve for x
x = 21,606,647,566,240.55/5,179,306.35 - Step 6: Final answer
x = 4,171,726.12
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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.