Finding the Fourth Proportional to 1,282,912,310.52, 1,770,418,988.01 and 696,201,446.52
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Solution
The fourth proportional to 1,282,912,310.52, 1,770,418,988.01 and 696,201,446.52 is: 960,757,995.92
Step by Step Solution
- Step 1: Write the proportion equation
1,282,912,310.52 : 1,770,418,988.01 = 696,201,446.52 : x - Step 2: Convert to fraction form
1,282,912,310.52/1,770,418,988.01 = 696,201,446.52/x - Step 3: Cross multiply
1,282,912,310.52x = 1,770,418,988.01 × 696,201,446.52 - Step 4: Simplify right side
1,282,912,310.52x = 1,232,568,260,399,036,416 - Step 5: Solve for x
x = 1,232,568,260,399,036,416/1,282,912,310.52 - Step 6: Final answer
x = 960,757,995.92
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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.