Finding the Fourth Proportional to 6,128,991.36, 9,190,411.20 and 3,571,032.96
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Solution
The fourth proportional to 6,128,991.36, 9,190,411.20 and 3,571,032.96 is: 5,354,757.31
Step by Step Solution
- Step 1: Write the proportion equation
6,128,991.36 : 9,190,411.20 = 3,571,032.96 : x - Step 2: Convert to fraction form
6,128,991.36/9,190,411.20 = 3,571,032.96/x - Step 3: Cross multiply
6,128,991.36x = 9,190,411.20 × 3,571,032.96 - Step 4: Simplify right side
6,128,991.36x = 32,819,261,311,153.15 - Step 5: Solve for x
x = 32,819,261,311,153.15/6,128,991.36 - Step 6: Final answer
x = 5,354,757.31
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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.