Finding the Fourth Proportional to 539,023,007.28, 743,853,991.68 and 291,504,361.62
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Solution
The fourth proportional to 539,023,007.28, 743,853,991.68 and 291,504,361.62 is: 402,277,231.31
Step by Step Solution
- Step 1: Write the proportion equation
539,023,007.28 : 743,853,991.68 = 291,504,361.62 : x - Step 2: Convert to fraction form
539,023,007.28/743,853,991.68 = 291,504,361.62/x - Step 3: Cross multiply
539,023,007.28x = 743,853,991.68 × 291,504,361.62 - Step 4: Simplify right side
539,023,007.28x = 216,836,682,983,167,168 - Step 5: Solve for x
x = 216,836,682,983,167,168/539,023,007.28 - Step 6: Final answer
x = 402,277,231.31
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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.