Finding the Fourth Proportional to 1,135,772,883.12, 1,567,367,626.68 and 614,252,115.12
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Solution
The fourth proportional to 1,135,772,883.12, 1,567,367,626.68 and 614,252,115.12 is: 847,668,485.63
Step by Step Solution
- Step 1: Write the proportion equation
1,135,772,883.12 : 1,567,367,626.68 = 614,252,115.12 : x - Step 2: Convert to fraction form
1,135,772,883.12/1,567,367,626.68 = 614,252,115.12/x - Step 3: Cross multiply
1,135,772,883.12x = 1,567,367,626.68 × 614,252,115.12 - Step 4: Simplify right side
1,135,772,883.12x = 962,758,879,858,804,608 - Step 5: Solve for x
x = 962,758,879,858,804,608/1,135,772,883.12 - Step 6: Final answer
x = 847,668,485.63
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.