Finding the Fourth Proportional to 308,833,249.52, 426,032,295.39 and 197,206,724.68
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Solution
The fourth proportional to 308,833,249.52, 426,032,295.39 and 197,206,724.68 is: 272,044,650.99
Step by Step Solution
- Step 1: Write the proportion equation
308,833,249.52 : 426,032,295.39 = 197,206,724.68 : x - Step 2: Convert to fraction form
308,833,249.52/426,032,295.39 = 197,206,724.68/x - Step 3: Cross multiply
308,833,249.52x = 426,032,295.39 × 197,206,724.68 - Step 4: Simplify right side
308,833,249.52x = 84,016,433,580,699,088 - Step 5: Solve for x
x = 84,016,433,580,699,088/308,833,249.52 - Step 6: Final answer
x = 272,044,650.99
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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.