Finding the Fourth Proportional to 272,558,431,165.72, 408,472,197,967.96 and 212,125,682,841.68
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Solution
The fourth proportional to 272,558,431,165.72, 408,472,197,967.96 and 212,125,682,841.68 is: 317,904,104,251.00
Step by Step Solution
- Step 1: Write the proportion equation
272,558,431,165.72 : 408,472,197,967.96 = 212,125,682,841.68 : x - Step 2: Convert to fraction form
272,558,431,165.72/408,472,197,967.96 = 212,125,682,841.68/x - Step 3: Cross multiply
272,558,431,165.72x = 408,472,197,967.96 × 212,125,682,841.68 - Step 4: Simplify right side
272,558,431,165.72x = 86,647,443,915,795,408,617,472 - Step 5: Solve for x
x = 86,647,443,915,795,408,617,472/272,558,431,165.72 - Step 6: Final answer
x = 317,904,104,251.00
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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.