Finding the Fourth Proportional to 2,138,830.80, 3,202,341.30 and 1,666,438.80
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Solution
The fourth proportional to 2,138,830.80, 3,202,341.30 and 1,666,438.80 is: 2,495,057.48
Step by Step Solution
- Step 1: Write the proportion equation
2,138,830.80 : 3,202,341.30 = 1,666,438.80 : x - Step 2: Convert to fraction form
2,138,830.80/3,202,341.30 = 1,666,438.80/x - Step 3: Cross multiply
2,138,830.80x = 3,202,341.30 × 1,666,438.80 - Step 4: Simplify right side
2,138,830.80x = 5,336,505,793,162.44 - Step 5: Solve for x
x = 5,336,505,793,162.44/2,138,830.80 - Step 6: Final answer
x = 2,495,057.48
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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.