Finding the Fourth Proportional to 2,135,682.45, 2,947,242.92 and 1,168,812.18
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Solution
The fourth proportional to 2,135,682.45, 2,947,242.92 and 1,168,812.18 is: 1,612,961.43
Step by Step Solution
- Step 1: Write the proportion equation
2,135,682.45 : 2,947,242.92 = 1,168,812.18 : x - Step 2: Convert to fraction form
2,135,682.45/2,947,242.92 = 1,168,812.18/x - Step 3: Cross multiply
2,135,682.45x = 2,947,242.92 × 1,168,812.18 - Step 4: Simplify right side
2,135,682.45x = 3,444,773,416,470.70 - Step 5: Solve for x
x = 3,444,773,416,470.70/2,135,682.45 - Step 6: Final answer
x = 1,612,961.43
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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.