Finding the Fourth Proportional to 389,241,871.44, 534,292,517.56 and 344,202,035.28
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Solution
The fourth proportional to 389,241,871.44, 534,292,517.56 and 344,202,035.28 is: 472,468,625.48
Step by Step Solution
- Step 1: Write the proportion equation
389,241,871.44 : 534,292,517.56 = 344,202,035.28 : x - Step 2: Convert to fraction form
389,241,871.44/534,292,517.56 = 344,202,035.28/x - Step 3: Cross multiply
389,241,871.44x = 534,292,517.56 × 344,202,035.28 - Step 4: Simplify right side
389,241,871.44x = 183,904,571,979,027,136 - Step 5: Solve for x
x = 183,904,571,979,027,136/389,241,871.44 - Step 6: Final answer
x = 472,468,625.48
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.