Finding the Fourth Proportional to 574,128,019.20, 861,192,028.80 and 328,232,236.80
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Solution
The fourth proportional to 574,128,019.20, 861,192,028.80 and 328,232,236.80 is: 492,348,355.20
Step by Step Solution
- Step 1: Write the proportion equation
574,128,019.20 : 861,192,028.80 = 328,232,236.80 : x - Step 2: Convert to fraction form
574,128,019.20/861,192,028.80 = 328,232,236.80/x - Step 3: Cross multiply
574,128,019.20x = 861,192,028.80 × 328,232,236.80 - Step 4: Simplify right side
574,128,019.20x = 282,670,985,927,354,016 - Step 5: Solve for x
x = 282,670,985,927,354,016/574,128,019.20 - Step 6: Final answer
x = 492,348,355.20
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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.