Finding the Fourth Proportional to 287,718,305.06, 397,050,514.17 and 160,557,650.09
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Solution
The fourth proportional to 287,718,305.06, 397,050,514.17 and 160,557,650.09 is: 221,569,140.37
Step by Step Solution
- Step 1: Write the proportion equation
287,718,305.06 : 397,050,514.17 = 160,557,650.09 : x - Step 2: Convert to fraction form
287,718,305.06/397,050,514.17 = 160,557,650.09/x - Step 3: Cross multiply
287,718,305.06x = 397,050,514.17 × 160,557,650.09 - Step 4: Simplify right side
287,718,305.06x = 63,749,497,522,161,448 - Step 5: Solve for x
x = 63,749,497,522,161,448/287,718,305.06 - Step 6: Final answer
x = 221,569,140.37
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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.