Finding the Fourth Proportional to 879,523,241.20, 1,319,284,861.80 and 825,103,682.80
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Solution
The fourth proportional to 879,523,241.20, 1,319,284,861.80 and 825,103,682.80 is: 1,237,655,524.20
Step by Step Solution
- Step 1: Write the proportion equation
879,523,241.20 : 1,319,284,861.80 = 825,103,682.80 : x - Step 2: Convert to fraction form
879,523,241.20/1,319,284,861.80 = 825,103,682.80/x - Step 3: Cross multiply
879,523,241.20x = 1,319,284,861.80 × 825,103,682.80 - Step 4: Simplify right side
879,523,241.20x = 1,088,546,798,133,468,928 - Step 5: Solve for x
x = 1,088,546,798,133,468,928/879,523,241.20 - Step 6: Final answer
x = 1,237,655,524.20
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Double scale
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Similar ratio
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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.