Finding the Fourth Proportional to 505,407,445.08, 757,626,858.90 and 213,873,528.12
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Solution
The fourth proportional to 505,407,445.08, 757,626,858.90 and 213,873,528.12 is: 320,605,347.01
Step by Step Solution
- Step 1: Write the proportion equation
505,407,445.08 : 757,626,858.90 = 213,873,528.12 : x - Step 2: Convert to fraction form
505,407,445.08/757,626,858.90 = 213,873,528.12/x - Step 3: Cross multiply
505,407,445.08x = 757,626,858.90 × 213,873,528.12 - Step 4: Simplify right side
505,407,445.08x = 162,036,329,311,416,416 - Step 5: Solve for x
x = 162,036,329,311,416,416/505,407,445.08 - Step 6: Final answer
x = 320,605,347.01
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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.