Finding the Fourth Proportional to 476,903,842.36, 658,030,821.71 and 278,627,043.44
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Solution
The fourth proportional to 476,903,842.36, 658,030,821.71 and 278,627,043.44 is: 384,448,951.89
Step by Step Solution
- Step 1: Write the proportion equation
476,903,842.36 : 658,030,821.71 = 278,627,043.44 : x - Step 2: Convert to fraction form
476,903,842.36/658,030,821.71 = 278,627,043.44/x - Step 3: Cross multiply
476,903,842.36x = 658,030,821.71 × 278,627,043.44 - Step 4: Simplify right side
476,903,842.36x = 183,345,182,345,703,008 - Step 5: Solve for x
x = 183,345,182,345,703,008/476,903,842.36 - Step 6: Final answer
x = 384,448,951.89
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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.