Finding the Fourth Proportional to 120,384,781.98, 166,141,245.11 and 68,183,104.02
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Solution
The fourth proportional to 120,384,781.98, 166,141,245.11 and 68,183,104.02 is: 94,098,486.63
Step by Step Solution
- Step 1: Write the proportion equation
120,384,781.98 : 166,141,245.11 = 68,183,104.02 : x - Step 2: Convert to fraction form
120,384,781.98/166,141,245.11 = 68,183,104.02/x - Step 3: Cross multiply
120,384,781.98x = 166,141,245.11 × 68,183,104.02 - Step 4: Simplify right side
120,384,781.98x = 11,328,025,796,687,198 - Step 5: Solve for x
x = 11,328,025,796,687,198/120,384,781.98 - Step 6: Final answer
x = 94,098,486.63
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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.