Finding the Fourth Proportional to 4,990,380,467.40, 7,485,570,701.10 and 1,310,257,830.60
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Solution
The fourth proportional to 4,990,380,467.40, 7,485,570,701.10 and 1,310,257,830.60 is: 1,965,386,745.90
Step by Step Solution
- Step 1: Write the proportion equation
4,990,380,467.40 : 7,485,570,701.10 = 1,310,257,830.60 : x - Step 2: Convert to fraction form
4,990,380,467.40/7,485,570,701.10 = 1,310,257,830.60/x - Step 3: Cross multiply
4,990,380,467.40x = 7,485,570,701.10 × 1,310,257,830.60 - Step 4: Simplify right side
4,990,380,467.40x = 9,808,027,627,626,207,232 - Step 5: Solve for x
x = 9,808,027,627,626,207,232/4,990,380,467.40 - Step 6: Final answer
x = 1,965,386,745.90
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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.