Finding the Fourth Proportional to 1,977,076,613.73, 2,728,185,406.80 and 1,173,165,591.60
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Solution
The fourth proportional to 1,977,076,613.73, 2,728,185,406.80 and 1,173,165,591.60 is: 1,618,861,517.32
Step by Step Solution
- Step 1: Write the proportion equation
1,977,076,613.73 : 2,728,185,406.80 = 1,173,165,591.60 : x - Step 2: Convert to fraction form
1,977,076,613.73/2,728,185,406.80 = 1,173,165,591.60/x - Step 3: Cross multiply
1,977,076,613.73x = 2,728,185,406.80 × 1,173,165,591.60 - Step 4: Simplify right side
1,977,076,613.73x = 3,200,613,246,763,008,512 - Step 5: Solve for x
x = 3,200,613,246,763,008,512/1,977,076,613.73 - Step 6: Final answer
x = 1,618,861,517.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.