Finding the Fourth Proportional to 1,674,265,409.80, 2,511,398,114.70 and 509,724,651.40
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Solution
The fourth proportional to 1,674,265,409.80, 2,511,398,114.70 and 509,724,651.40 is: 764,586,977.10
Step by Step Solution
- Step 1: Write the proportion equation
1,674,265,409.80 : 2,511,398,114.70 = 509,724,651.40 : x - Step 2: Convert to fraction form
1,674,265,409.80/2,511,398,114.70 = 509,724,651.40/x - Step 3: Cross multiply
1,674,265,409.80x = 2,511,398,114.70 × 509,724,651.40 - Step 4: Simplify right side
1,674,265,409.80x = 1,280,121,528,542,074,624 - Step 5: Solve for x
x = 1,280,121,528,542,074,624/1,674,265,409.80 - Step 6: Final answer
x = 764,586,977.10
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Similar ratio
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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.