Finding the Fourth Proportional to 367,285,431.96, 506,848,921.08 and 208,514,112.12
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Solution
The fourth proportional to 367,285,431.96, 506,848,921.08 and 208,514,112.12 is: 287,746,650.32
Step by Step Solution
- Step 1: Write the proportion equation
367,285,431.96 : 506,848,921.08 = 208,514,112.12 : x - Step 2: Convert to fraction form
367,285,431.96/506,848,921.08 = 208,514,112.12/x - Step 3: Cross multiply
367,285,431.96x = 506,848,921.08 × 208,514,112.12 - Step 4: Simplify right side
367,285,431.96x = 105,685,152,757,976,144 - Step 5: Solve for x
x = 105,685,152,757,976,144/367,285,431.96 - Step 6: Final answer
x = 287,746,650.32
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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.