Finding the Fourth Proportional to 384,886,027.54, 531,153,920.37 and 217,618,695.69
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Solution
The fourth proportional to 384,886,027.54, 531,153,920.37 and 217,618,695.69 is: 300,320,133.99
Step by Step Solution
- Step 1: Write the proportion equation
384,886,027.54 : 531,153,920.37 = 217,618,695.69 : x - Step 2: Convert to fraction form
384,886,027.54/531,153,920.37 = 217,618,695.69/x - Step 3: Cross multiply
384,886,027.54x = 531,153,920.37 × 217,618,695.69 - Step 4: Simplify right side
384,886,027.54x = 115,589,023,361,549,520 - Step 5: Solve for x
x = 115,589,023,361,549,520/384,886,027.54 - Step 6: Final answer
x = 300,320,133.99
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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.