Finding the Fourth Proportional to 1,115,757,286.46, 1,673,878,067.53 and 339,382,769.03
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Solution
The fourth proportional to 1,115,757,286.46, 1,673,878,067.53 and 339,382,769.03 is: 509,147,805.23
Step by Step Solution
- Step 1: Write the proportion equation
1,115,757,286.46 : 1,673,878,067.53 = 339,382,769.03 : x - Step 2: Convert to fraction form
1,115,757,286.46/1,673,878,067.53 = 339,382,769.03/x - Step 3: Cross multiply
1,115,757,286.46x = 1,673,878,067.53 × 339,382,769.03 - Step 4: Simplify right side
1,115,757,286.46x = 568,085,373,573,975,872 - Step 5: Solve for x
x = 568,085,373,573,975,872/1,115,757,286.46 - Step 6: Final answer
x = 509,147,805.23
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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.