Finding the Fourth Proportional to 805,049,486.40, 1,207,574,229.60 and 611,557,723.20
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Solution
The fourth proportional to 805,049,486.40, 1,207,574,229.60 and 611,557,723.20 is: 917,336,584.80
Step by Step Solution
- Step 1: Write the proportion equation
805,049,486.40 : 1,207,574,229.60 = 611,557,723.20 : x - Step 2: Convert to fraction form
805,049,486.40/1,207,574,229.60 = 611,557,723.20/x - Step 3: Cross multiply
805,049,486.40x = 1,207,574,229.60 × 611,557,723.20 - Step 4: Simplify right side
805,049,486.40x = 738,501,346,449,170,048 - Step 5: Solve for x
x = 738,501,346,449,170,048/805,049,486.40 - Step 6: Final answer
x = 917,336,584.80
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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.