Finding the Fourth Proportional to 49,921,879.73, 68,899,037.33 and 28,728,224.12
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Solution
The fourth proportional to 49,921,879.73, 68,899,037.33 and 28,728,224.12 is: 39,648,887.36
Step by Step Solution
- Step 1: Write the proportion equation
49,921,879.73 : 68,899,037.33 = 28,728,224.12 : x - Step 2: Convert to fraction form
49,921,879.73/68,899,037.33 = 28,728,224.12/x - Step 3: Cross multiply
49,921,879.73x = 68,899,037.33 × 28,728,224.12 - Step 4: Simplify right side
49,921,879.73x = 1,979,346,986,068,486.50 - Step 5: Solve for x
x = 1,979,346,986,068,486.50/49,921,879.73 - Step 6: Final answer
x = 39,648,887.36
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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.