Finding the Fourth Proportional to 4,638,678,840.99, 6,960,158,170.72 and 2,118,379,687.91
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Solution
The fourth proportional to 4,638,678,840.99, 6,960,158,170.72 and 2,118,379,687.91 is: 3,178,546,780.01
Step by Step Solution
- Step 1: Write the proportion equation
4,638,678,840.99 : 6,960,158,170.72 = 2,118,379,687.91 : x - Step 2: Convert to fraction form
4,638,678,840.99/6,960,158,170.72 = 2,118,379,687.91/x - Step 3: Cross multiply
4,638,678,840.99x = 6,960,158,170.72 × 2,118,379,687.91 - Step 4: Simplify right side
4,638,678,840.99x = 14,744,257,693,499,213,824 - Step 5: Solve for x
x = 14,744,257,693,499,213,824/4,638,678,840.99 - Step 6: Final answer
x = 3,178,546,780.01
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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.