Finding the Fourth Proportional to 2,587,074,476.80, 3,879,194,539.18 and 1,274,089,256.32
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Solution
The fourth proportional to 2,587,074,476.80, 3,879,194,539.18 and 1,274,089,256.32 is: 1,910,435,949.90
Step by Step Solution
- Step 1: Write the proportion equation
2,587,074,476.80 : 3,879,194,539.18 = 1,274,089,256.32 : x - Step 2: Convert to fraction form
2,587,074,476.80/3,879,194,539.18 = 1,274,089,256.32/x - Step 3: Cross multiply
2,587,074,476.80x = 3,879,194,539.18 × 1,274,089,256.32 - Step 4: Simplify right side
2,587,074,476.80x = 4,942,440,085,544,451,072 - Step 5: Solve for x
x = 4,942,440,085,544,451,072/2,587,074,476.80 - Step 6: Final answer
x = 1,910,435,949.90
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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.