Finding the Fourth Proportional to 1,115,757,287.97, 1,673,878,069.79 and 339,382,770.53
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Solution
The fourth proportional to 1,115,757,287.97, 1,673,878,069.79 and 339,382,770.53 is: 509,147,807.48
Step by Step Solution
- Step 1: Write the proportion equation
1,115,757,287.97 : 1,673,878,069.79 = 339,382,770.53 : x - Step 2: Convert to fraction form
1,115,757,287.97/1,673,878,069.79 = 339,382,770.53/x - Step 3: Cross multiply
1,115,757,287.97x = 1,673,878,069.79 × 339,382,770.53 - Step 4: Simplify right side
1,115,757,287.97x = 568,085,376,844,672,576 - Step 5: Solve for x
x = 568,085,376,844,672,576/1,115,757,287.97 - Step 6: Final answer
x = 509,147,807.48
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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.