Finding the Fourth Proportional to 879,523,238.70, 1,319,284,858.05 and 825,103,680.30
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Solution
The fourth proportional to 879,523,238.70, 1,319,284,858.05 and 825,103,680.30 is: 1,237,655,520.45
Step by Step Solution
- Step 1: Write the proportion equation
879,523,238.70 : 1,319,284,858.05 = 825,103,680.30 : x - Step 2: Convert to fraction form
879,523,238.70/1,319,284,858.05 = 825,103,680.30/x - Step 3: Cross multiply
879,523,238.70x = 1,319,284,858.05 × 825,103,680.30 - Step 4: Simplify right side
879,523,238.70x = 1,088,546,791,741,117,952 - Step 5: Solve for x
x = 1,088,546,791,741,117,952/879,523,238.70 - Step 6: Final answer
x = 1,237,655,520.45
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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.