Finding the Fourth Proportional to 5,122,965.44, 7,069,009.16 and 3,289,906.68
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Solution
The fourth proportional to 5,122,965.44, 7,069,009.16 and 3,289,906.68 is: 4,539,632.51
Step by Step Solution
- Step 1: Write the proportion equation
5,122,965.44 : 7,069,009.16 = 3,289,906.68 : x - Step 2: Convert to fraction form
5,122,965.44/7,069,009.16 = 3,289,906.68/x - Step 3: Cross multiply
5,122,965.44x = 7,069,009.16 × 3,289,906.68 - Step 4: Simplify right side
5,122,965.44x = 23,256,380,440,015.66 - Step 5: Solve for x
x = 23,256,380,440,015.66/5,122,965.44 - Step 6: Final answer
x = 4,539,632.51
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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.