Finding the Fourth Proportional to 382,752,002.80, 574,128,004.20 and 218,821,481.20
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Solution
The fourth proportional to 382,752,002.80, 574,128,004.20 and 218,821,481.20 is: 328,232,221.80
Step by Step Solution
- Step 1: Write the proportion equation
382,752,002.80 : 574,128,004.20 = 218,821,481.20 : x - Step 2: Convert to fraction form
382,752,002.80/574,128,004.20 = 218,821,481.20/x - Step 3: Cross multiply
382,752,002.80x = 574,128,004.20 × 218,821,481.20 - Step 4: Simplify right side
382,752,002.80x = 125,631,540,277,443,824 - Step 5: Solve for x
x = 125,631,540,277,443,824/382,752,002.80 - Step 6: Final answer
x = 328,232,221.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.