Finding the Fourth Proportional to 72,612,071.70, 108,918,107.55 and 27,167,961.30
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Solution
The fourth proportional to 72,612,071.70, 108,918,107.55 and 27,167,961.30 is: 40,751,941.95
Step by Step Solution
- Step 1: Write the proportion equation
72,612,071.70 : 108,918,107.55 = 27,167,961.30 : x - Step 2: Convert to fraction form
72,612,071.70/108,918,107.55 = 27,167,961.30/x - Step 3: Cross multiply
72,612,071.70x = 108,918,107.55 × 27,167,961.30 - Step 4: Simplify right side
72,612,071.70x = 2,959,082,930,787,638 - Step 5: Solve for x
x = 2,959,082,930,787,638/72,612,071.70 - Step 6: Final answer
x = 40,751,941.95
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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.