Finding the Fourth Proportional to 5,789,781.81, 7,989,873.26 and 3,308,961.09
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Solution
The fourth proportional to 5,789,781.81, 7,989,873.26 and 3,308,961.09 is: 4,566,351.65
Step by Step Solution
- Step 1: Write the proportion equation
5,789,781.81 : 7,989,873.26 = 3,308,961.09 : x - Step 2: Convert to fraction form
5,789,781.81/7,989,873.26 = 3,308,961.09/x - Step 3: Cross multiply
5,789,781.81x = 7,989,873.26 × 3,308,961.09 - Step 4: Simplify right side
5,789,781.81x = 26,438,179,714,826.64 - Step 5: Solve for x
x = 26,438,179,714,826.64/5,789,781.81 - Step 6: Final answer
x = 4,566,351.65
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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.