Finding the Fourth Proportional to 151,920,073.16, 209,650,707.49 and 82,305,454.12
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Solution
The fourth proportional to 151,920,073.16, 209,650,707.49 and 82,305,454.12 is: 113,582,071.99
Step by Step Solution
- Step 1: Write the proportion equation
151,920,073.16 : 209,650,707.49 = 82,305,454.12 : x - Step 2: Convert to fraction form
151,920,073.16/209,650,707.49 = 82,305,454.12/x - Step 3: Cross multiply
151,920,073.16x = 209,650,707.49 × 82,305,454.12 - Step 4: Simplify right side
151,920,073.16x = 17,255,396,685,967,756 - Step 5: Solve for x
x = 17,255,396,685,967,756/151,920,073.16 - Step 6: Final answer
x = 113,582,071.99
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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.