Finding the Fourth Proportional to 220,670,821.40, 304,514,478.36 and 121,549,434.96
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Solution
The fourth proportional to 220,670,821.40, 304,514,478.36 and 121,549,434.96 is: 167,732,020.69
Step by Step Solution
- Step 1: Write the proportion equation
220,670,821.40 : 304,514,478.36 = 121,549,434.96 : x - Step 2: Convert to fraction form
220,670,821.40/304,514,478.36 = 121,549,434.96/x - Step 3: Cross multiply
220,670,821.40x = 304,514,478.36 × 121,549,434.96 - Step 4: Simplify right side
220,670,821.40x = 37,013,562,781,797,144 - Step 5: Solve for x
x = 37,013,562,781,797,144/220,670,821.40 - Step 6: Final answer
x = 167,732,020.69
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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.