Finding the Fourth Proportional to 121,813,880.22, 168,104,448.63 and 66,059,409.42
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Solution
The fourth proportional to 121,813,880.22, 168,104,448.63 and 66,059,409.42 is: 91,162,686.69
Step by Step Solution
- Step 1: Write the proportion equation
121,813,880.22 : 168,104,448.63 = 66,059,409.42 : x - Step 2: Convert to fraction form
121,813,880.22/168,104,448.63 = 66,059,409.42/x - Step 3: Cross multiply
121,813,880.22x = 168,104,448.63 × 66,059,409.42 - Step 4: Simplify right side
121,813,880.22x = 11,104,880,597,372,528 - Step 5: Solve for x
x = 11,104,880,597,372,528/121,813,880.22 - Step 6: Final answer
x = 91,162,686.69
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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.