Finding the Fourth Proportional to 2,279,188,330.97, 3,418,167,436.53 and 805,134,082.92
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Solution
The fourth proportional to 2,279,188,330.97, 3,418,167,436.53 and 805,134,082.92 is: 1,207,483,851.55
Step by Step Solution
- Step 1: Write the proportion equation
2,279,188,330.97 : 3,418,167,436.53 = 805,134,082.92 : x - Step 2: Convert to fraction form
2,279,188,330.97/3,418,167,436.53 = 805,134,082.92/x - Step 3: Cross multiply
2,279,188,330.97x = 3,418,167,436.53 × 805,134,082.92 - Step 4: Simplify right side
2,279,188,330.97x = 2,752,083,104,284,121,600 - Step 5: Solve for x
x = 2,752,083,104,284,121,600/2,279,188,330.97 - Step 6: Final answer
x = 1,207,483,851.55
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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.