Finding the Fourth Proportional to 989,646,481.44, 1,365,630,832.56 and 543,586,791.84
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Solution
The fourth proportional to 989,646,481.44, 1,365,630,832.56 and 543,586,791.84 is: 750,105,110.29
Step by Step Solution
- Step 1: Write the proportion equation
989,646,481.44 : 1,365,630,832.56 = 543,586,791.84 : x - Step 2: Convert to fraction form
989,646,481.44/1,365,630,832.56 = 543,586,791.84/x - Step 3: Cross multiply
989,646,481.44x = 1,365,630,832.56 × 543,586,791.84 - Step 4: Simplify right side
989,646,481.44x = 742,338,883,109,078,656 - Step 5: Solve for x
x = 742,338,883,109,078,656/989,646,481.44 - Step 6: Final answer
x = 750,105,110.29
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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.