Finding the Fourth Proportional to 1,674,261,616.80, 2,511,392,425.20 and 509,720,858.40
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Solution
The fourth proportional to 1,674,261,616.80, 2,511,392,425.20 and 509,720,858.40 is: 764,581,287.60
Step by Step Solution
- Step 1: Write the proportion equation
1,674,261,616.80 : 2,511,392,425.20 = 509,720,858.40 : x - Step 2: Convert to fraction form
1,674,261,616.80/2,511,392,425.20 = 509,720,858.40/x - Step 3: Cross multiply
1,674,261,616.80x = 2,511,392,425.20 × 509,720,858.40 - Step 4: Simplify right side
1,674,261,616.80x = 1,280,109,102,752,201,728 - Step 5: Solve for x
x = 1,280,109,102,752,201,728/1,674,261,616.80 - Step 6: Final answer
x = 764,581,287.60
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1.5x scale
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.