Finding the Fourth Proportional to 5,286,647,214, 7,930,874,256.12 and 2,179,531,349.28
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Solution
The fourth proportional to 5,286,647,214, 7,930,874,256.12 and 2,179,531,349.28 is: 3,269,669,484.02
Step by Step Solution
- Step 1: Write the proportion equation
5,286,647,214 : 7,930,874,256.12 = 2,179,531,349.28 : x - Step 2: Convert to fraction form
5,286,647,214/7,930,874,256.12 = 2,179,531,349.28/x - Step 3: Cross multiply
5,286,647,214x = 7,930,874,256.12 × 2,179,531,349.28 - Step 4: Simplify right side
5,286,647,214x = 17,285,589,068,411,240,448 - Step 5: Solve for x
x = 17,285,589,068,411,240,448/5,286,647,214 - Step 6: Final answer
x = 3,269,669,484.02
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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.