Finding the Fourth Proportional to 212,326,013.94, 292,858,966.77 and 141,726,028.68
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Solution
The fourth proportional to 212,326,013.94, 292,858,966.77 and 141,726,028.68 is: 195,481,173.28
Step by Step Solution
- Step 1: Write the proportion equation
212,326,013.94 : 292,858,966.77 = 141,726,028.68 : x - Step 2: Convert to fraction form
212,326,013.94/292,858,966.77 = 141,726,028.68/x - Step 3: Cross multiply
212,326,013.94x = 292,858,966.77 × 141,726,028.68 - Step 4: Simplify right side
212,326,013.94x = 41,505,738,323,640,184 - Step 5: Solve for x
x = 41,505,738,323,640,184/212,326,013.94 - Step 6: Final answer
x = 195,481,173.28
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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.