Finding the Fourth Proportional to 2,987,647,401.60, 4,478,447,793.60 and 1,760,184,028.80
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Solution
The fourth proportional to 2,987,647,401.60, 4,478,447,793.60 and 1,760,184,028.80 is: 2,638,494,849.12
Step by Step Solution
- Step 1: Write the proportion equation
2,987,647,401.60 : 4,478,447,793.60 = 1,760,184,028.80 : x - Step 2: Convert to fraction form
2,987,647,401.60/4,478,447,793.60 = 1,760,184,028.80/x - Step 3: Cross multiply
2,987,647,401.60x = 4,478,447,793.60 × 1,760,184,028.80 - Step 4: Simplify right side
2,987,647,401.60x = 7,882,892,280,109,319,168 - Step 5: Solve for x
x = 7,882,892,280,109,319,168/2,987,647,401.60 - Step 6: Final answer
x = 2,638,494,849.12
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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.