Finding the Fourth Proportional to 2,160,201.53, 2,981,103.04 and 1,193,311.55
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Solution
The fourth proportional to 2,160,201.53, 2,981,103.04 and 1,193,311.55 is: 1,646,783.71
Step by Step Solution
- Step 1: Write the proportion equation
2,160,201.53 : 2,981,103.04 = 1,193,311.55 : x - Step 2: Convert to fraction form
2,160,201.53/2,981,103.04 = 1,193,311.55/x - Step 3: Cross multiply
2,160,201.53x = 2,981,103.04 × 1,193,311.55 - Step 4: Simplify right side
2,160,201.53x = 3,557,384,698,316.51 - Step 5: Solve for x
x = 3,557,384,698,316.51/2,160,201.53 - Step 6: Final answer
x = 1,646,783.71
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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.