Finding the Fourth Proportional to 848,278,896.30, 1,272,418,344.45 and 440,132,208.30
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Solution
The fourth proportional to 848,278,896.30, 1,272,418,344.45 and 440,132,208.30 is: 660,198,312.45
Step by Step Solution
- Step 1: Write the proportion equation
848,278,896.30 : 1,272,418,344.45 = 440,132,208.30 : x - Step 2: Convert to fraction form
848,278,896.30/1,272,418,344.45 = 440,132,208.30/x - Step 3: Cross multiply
848,278,896.30x = 1,272,418,344.45 × 440,132,208.30 - Step 4: Simplify right side
848,278,896.30x = 560,032,295,824,208,576 - Step 5: Solve for x
x = 560,032,295,824,208,576/848,278,896.30 - Step 6: Final answer
x = 660,198,312.45
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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.