Finding the Fourth Proportional to 646,891,115.60, 969,675,324.60 and 318,862,110.80
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Solution
The fourth proportional to 646,891,115.60, 969,675,324.60 and 318,862,110.80 is: 477,967,177.68
Step by Step Solution
- Step 1: Write the proportion equation
646,891,115.60 : 969,675,324.60 = 318,862,110.80 : x - Step 2: Convert to fraction form
646,891,115.60/969,675,324.60 = 318,862,110.80/x - Step 3: Cross multiply
646,891,115.60x = 969,675,324.60 × 318,862,110.80 - Step 4: Simplify right side
646,891,115.60x = 309,192,720,792,631,168 - Step 5: Solve for x
x = 309,192,720,792,631,168/646,891,115.60 - Step 6: Final answer
x = 477,967,177.68
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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.