Finding the Fourth Proportional to 2,586,949,892.80, 3,880,991,709.60 and 1,277,479,268.80
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Solution
The fourth proportional to 2,586,949,892.80, 3,880,991,709.60 and 1,277,479,268.80 is: 1,916,498,833.32
Step by Step Solution
- Step 1: Write the proportion equation
2,586,949,892.80 : 3,880,991,709.60 = 1,277,479,268.80 : x - Step 2: Convert to fraction form
2,586,949,892.80/3,880,991,709.60 = 1,277,479,268.80/x - Step 3: Cross multiply
2,586,949,892.80x = 3,880,991,709.60 × 1,277,479,268.80 - Step 4: Simplify right side
2,586,949,892.80x = 4,957,886,451,398,669,312 - Step 5: Solve for x
x = 4,957,886,451,398,669,312/2,586,949,892.80 - Step 6: Final answer
x = 1,916,498,833.32
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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.