Finding the Fourth Proportional to 248,385,141.21, 342,773,761.79 and 136,879,982.79
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Solution
The fourth proportional to 248,385,141.21, 342,773,761.79 and 136,879,982.79 is: 188,895,625.50
Step by Step Solution
- Step 1: Write the proportion equation
248,385,141.21 : 342,773,761.79 = 136,879,982.79 : x - Step 2: Convert to fraction form
248,385,141.21/342,773,761.79 = 136,879,982.79/x - Step 3: Cross multiply
248,385,141.21x = 342,773,761.79 × 136,879,982.79 - Step 4: Simplify right side
248,385,141.21x = 46,918,866,613,994,360 - Step 5: Solve for x
x = 46,918,866,613,994,360/248,385,141.21 - Step 6: Final answer
x = 188,895,625.50
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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.