Finding the Fourth Proportional to 616,987,132.37, 851,457,910.48 and 338,528,582.09
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Solution
The fourth proportional to 616,987,132.37, 851,457,910.48 and 338,528,582.09 is: 467,178,039.90
Step by Step Solution
- Step 1: Write the proportion equation
616,987,132.37 : 851,457,910.48 = 338,528,582.09 : x - Step 2: Convert to fraction form
616,987,132.37/851,457,910.48 = 338,528,582.09/x - Step 3: Cross multiply
616,987,132.37x = 851,457,910.48 × 338,528,582.09 - Step 4: Simplify right side
616,987,132.37x = 288,242,839,138,998,144 - Step 5: Solve for x
x = 288,242,839,138,998,144/616,987,132.37 - Step 6: Final answer
x = 467,178,039.90
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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.