Finding the Fourth Proportional to 542,658,513.80, 814,322,579.42 and 251,471,361.08
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Solution
The fourth proportional to 542,658,513.80, 814,322,579.42 and 251,471,361.08 is: 377,362,194.08
Step by Step Solution
- Step 1: Write the proportion equation
542,658,513.80 : 814,322,579.42 = 251,471,361.08 : x - Step 2: Convert to fraction form
542,658,513.80/814,322,579.42 = 251,471,361.08/x - Step 3: Cross multiply
542,658,513.80x = 814,322,579.42 × 251,471,361.08 - Step 4: Simplify right side
542,658,513.80x = 204,778,807,404,923,808 - Step 5: Solve for x
x = 204,778,807,404,923,808/542,658,513.80 - Step 6: Final answer
x = 377,362,194.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.