Finding the Fourth Proportional to 80,451,907.30, 120,677,860.95 and 29,335,593.70
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Solution
The fourth proportional to 80,451,907.30, 120,677,860.95 and 29,335,593.70 is: 44,003,390.55
Step by Step Solution
- Step 1: Write the proportion equation
80,451,907.30 : 120,677,860.95 = 29,335,593.70 : x - Step 2: Convert to fraction form
80,451,907.30/120,677,860.95 = 29,335,593.70/x - Step 3: Cross multiply
80,451,907.30x = 120,677,860.95 × 29,335,593.70 - Step 4: Simplify right side
80,451,907.30x = 3,540,156,697,414,296 - Step 5: Solve for x
x = 3,540,156,697,414,296/80,451,907.30 - Step 6: Final answer
x = 44,003,390.55
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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.