Finding the Fourth Proportional to 1,063,010,517.20, 1,594,515,775.80 and 416,778,261.20
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Solution
The fourth proportional to 1,063,010,517.20, 1,594,515,775.80 and 416,778,261.20 is: 625,167,391.80
Step by Step Solution
- Step 1: Write the proportion equation
1,063,010,517.20 : 1,594,515,775.80 = 416,778,261.20 : x - Step 2: Convert to fraction form
1,063,010,517.20/1,594,515,775.80 = 416,778,261.20/x - Step 3: Cross multiply
1,063,010,517.20x = 1,594,515,775.80 × 416,778,261.20 - Step 4: Simplify right side
1,063,010,517.20x = 664,559,512,493,892,992 - Step 5: Solve for x
x = 664,559,512,493,892,992/1,063,010,517.20 - Step 6: Final answer
x = 625,167,391.80
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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.