Finding the Fourth Proportional to 219,944,889.81, 303,514,129.62 and 131,887,478.07
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Solution
The fourth proportional to 219,944,889.81, 303,514,129.62 and 131,887,478.07 is: 181,998,832.29
Step by Step Solution
- Step 1: Write the proportion equation
219,944,889.81 : 303,514,129.62 = 131,887,478.07 : x - Step 2: Convert to fraction form
219,944,889.81/303,514,129.62 = 131,887,478.07/x - Step 3: Cross multiply
219,944,889.81x = 303,514,129.62 × 131,887,478.07 - Step 4: Simplify right side
219,944,889.81x = 40,029,713,114,192,888 - Step 5: Solve for x
x = 40,029,713,114,192,888/219,944,889.81 - Step 6: Final answer
x = 181,998,832.29
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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.