Finding the Fourth Proportional to 352,589,077.80, 528,883,616.70 and 209,261,845.80
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Solution
The fourth proportional to 352,589,077.80, 528,883,616.70 and 209,261,845.80 is: 313,892,768.70
Step by Step Solution
- Step 1: Write the proportion equation
352,589,077.80 : 528,883,616.70 = 209,261,845.80 : x - Step 2: Convert to fraction form
352,589,077.80/528,883,616.70 = 209,261,845.80/x - Step 3: Cross multiply
352,589,077.80x = 528,883,616.70 × 209,261,845.80 - Step 4: Simplify right side
352,589,077.80x = 110,675,161,844,021,712 - Step 5: Solve for x
x = 110,675,161,844,021,712/352,589,077.80 - Step 6: Final answer
x = 313,892,768.70
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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.