Finding the Fourth Proportional to 220,861,478.09, 304,802,476.37 and 121,742,002.26
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Solution
The fourth proportional to 220,861,478.09, 304,802,476.37 and 121,742,002.26 is: 168,011,479.81
Step by Step Solution
- Step 1: Write the proportion equation
220,861,478.09 : 304,802,476.37 = 121,742,002.26 : x - Step 2: Convert to fraction form
220,861,478.09/304,802,476.37 = 121,742,002.26/x - Step 3: Cross multiply
220,861,478.09x = 304,802,476.37 × 121,742,002.26 - Step 4: Simplify right side
220,861,478.09x = 37,107,263,766,936,744 - Step 5: Solve for x
x = 37,107,263,766,936,744/220,861,478.09 - Step 6: Final answer
x = 168,011,479.81
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1.5x scale
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.