Finding the Fourth Proportional to 585,081,914.28, 807,412,847.39 and 320,758,232.21
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Solution
The fourth proportional to 585,081,914.28, 807,412,847.39 and 320,758,232.21 is: 442,646,253.92
Step by Step Solution
- Step 1: Write the proportion equation
585,081,914.28 : 807,412,847.39 = 320,758,232.21 : x - Step 2: Convert to fraction form
585,081,914.28/807,412,847.39 = 320,758,232.21/x - Step 3: Cross multiply
585,081,914.28x = 807,412,847.39 × 320,758,232.21 - Step 4: Simplify right side
585,081,914.28x = 258,984,317,595,279,328 - Step 5: Solve for x
x = 258,984,317,595,279,328/585,081,914.28 - Step 6: Final answer
x = 442,646,253.92
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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.