Finding the Fourth Proportional to 2,166,987,631.05, 3,250,481,446.58 and 531,212,233.05
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Solution
The fourth proportional to 2,166,987,631.05, 3,250,481,446.58 and 531,212,233.05 is: 796,818,349.58
Step by Step Solution
- Step 1: Write the proportion equation
2,166,987,631.05 : 3,250,481,446.58 = 531,212,233.05 : x - Step 2: Convert to fraction form
2,166,987,631.05/3,250,481,446.58 = 531,212,233.05/x - Step 3: Cross multiply
2,166,987,631.05x = 3,250,481,446.58 × 531,212,233.05 - Step 4: Simplify right side
2,166,987,631.05x = 1,726,695,507,722,700,032 - Step 5: Solve for x
x = 1,726,695,507,722,700,032/2,166,987,631.05 - Step 6: Final answer
x = 796,818,349.58
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Similar ratio
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1.5x scale
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.