Finding the Fourth Proportional to 1,093,480,287.80, 1,640,220,431.70 and 327,575,391.80
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Solution
The fourth proportional to 1,093,480,287.80, 1,640,220,431.70 and 327,575,391.80 is: 491,363,087.70
Step by Step Solution
- Step 1: Write the proportion equation
1,093,480,287.80 : 1,640,220,431.70 = 327,575,391.80 : x - Step 2: Convert to fraction form
1,093,480,287.80/1,640,220,431.70 = 327,575,391.80/x - Step 3: Cross multiply
1,093,480,287.80x = 1,640,220,431.70 × 327,575,391.80 - Step 4: Simplify right side
1,093,480,287.80x = 537,295,850,552,492,672 - Step 5: Solve for x
x = 537,295,850,552,492,672/1,093,480,287.80 - Step 6: Final answer
x = 491,363,087.70
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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.