Finding the Fourth Proportional to 397,826,933.96, 549,018,099.96 and 221,614,716.08
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Solution
The fourth proportional to 397,826,933.96, 549,018,099.96 and 221,614,716.08 is: 305,837,739.88
Step by Step Solution
- Step 1: Write the proportion equation
397,826,933.96 : 549,018,099.96 = 221,614,716.08 : x - Step 2: Convert to fraction form
397,826,933.96/549,018,099.96 = 221,614,716.08/x - Step 3: Cross multiply
397,826,933.96x = 549,018,099.96 × 221,614,716.08 - Step 4: Simplify right side
397,826,933.96x = 121,670,490,345,416,480 - Step 5: Solve for x
x = 121,670,490,345,416,480/397,826,933.96 - Step 6: Final answer
x = 305,837,739.88
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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.