Finding the Fourth Proportional to 3,518,326,206.12, 4,853,059,030.92 and 2,161,366,305.96
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Solution
The fourth proportional to 3,518,326,206.12, 4,853,059,030.92 and 2,161,366,305.96 is: 2,981,314,879.79
Step by Step Solution
- Step 1: Write the proportion equation
3,518,326,206.12 : 4,853,059,030.92 = 2,161,366,305.96 : x - Step 2: Convert to fraction form
3,518,326,206.12/4,853,059,030.92 = 2,161,366,305.96/x - Step 3: Cross multiply
3,518,326,206.12x = 4,853,059,030.92 × 2,161,366,305.96 - Step 4: Simplify right side
3,518,326,206.12x = 10,489,238,270,265,378,816 - Step 5: Solve for x
x = 10,489,238,270,265,378,816/3,518,326,206.12 - Step 6: Final answer
x = 2,981,314,879.79
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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.