Finding the Fourth Proportional to 3,901,823,186.16, 5,384,521,329 and 2,117,676,666.62
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Solution
The fourth proportional to 3,901,823,186.16, 5,384,521,329 and 2,117,676,666.62 is: 2,922,396,693.88
Step by Step Solution
- Step 1: Write the proportion equation
3,901,823,186.16 : 5,384,521,329 = 2,117,676,666.62 : x - Step 2: Convert to fraction form
3,901,823,186.16/5,384,521,329 = 2,117,676,666.62/x - Step 3: Cross multiply
3,901,823,186.16x = 5,384,521,329 × 2,117,676,666.62 - Step 4: Simplify right side
3,901,823,186.16x = 11,402,675,179,341,010,944 - Step 5: Solve for x
x = 11,402,675,179,341,010,944/3,901,823,186.16 - Step 6: Final answer
x = 2,922,396,693.88
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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.