Finding the Fourth Proportional to 122,887,107.17, 169,586,707.81 and 67,136,138.56
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Solution
The fourth proportional to 122,887,107.17, 169,586,707.81 and 67,136,138.56 is: 92,649,236.97
Step by Step Solution
- Step 1: Write the proportion equation
122,887,107.17 : 169,586,707.81 = 67,136,138.56 : x - Step 2: Convert to fraction form
122,887,107.17/169,586,707.81 = 67,136,138.56/x - Step 3: Cross multiply
122,887,107.17x = 169,586,707.81 × 67,136,138.56 - Step 4: Simplify right side
122,887,107.17x = 11,385,396,712,874,588 - Step 5: Solve for x
x = 11,385,396,712,874,588/122,887,107.17 - Step 6: Final answer
x = 92,649,236.97
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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.