Finding the Fourth Proportional to 346,982,728.92, 478,833,331.80 and 188,212,454.44
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Solution
The fourth proportional to 346,982,728.92, 478,833,331.80 and 188,212,454.44 is: 259,731,649.83
Step by Step Solution
- Step 1: Write the proportion equation
346,982,728.92 : 478,833,331.80 = 188,212,454.44 : x - Step 2: Convert to fraction form
346,982,728.92/478,833,331.80 = 188,212,454.44/x - Step 3: Cross multiply
346,982,728.92x = 478,833,331.80 × 188,212,454.44 - Step 4: Simplify right side
346,982,728.92x = 90,122,396,644,331,824 - Step 5: Solve for x
x = 90,122,396,644,331,824/346,982,728.92 - Step 6: Final answer
x = 259,731,649.83
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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.