Finding the Fourth Proportional to 121,937,573.64, 168,274,035.96 and 66,183,014.08
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Solution
The fourth proportional to 121,937,573.64, 168,274,035.96 and 66,183,014.08 is: 91,332,659.48
Step by Step Solution
- Step 1: Write the proportion equation
121,937,573.64 : 168,274,035.96 = 66,183,014.08 : x - Step 2: Convert to fraction form
121,937,573.64/168,274,035.96 = 66,183,014.08/x - Step 3: Cross multiply
121,937,573.64x = 168,274,035.96 × 66,183,014.08 - Step 4: Simplify right side
121,937,573.64x = 11,136,882,891,239,106 - Step 5: Solve for x
x = 11,136,882,891,239,106/121,937,573.64 - Step 6: Final answer
x = 91,332,659.48
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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.