Finding the Fourth Proportional to 220,861,530.50, 304,802,548.36 and 121,742,054.33
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Solution
The fourth proportional to 220,861,530.50, 304,802,548.36 and 121,742,054.33 is: 168,011,551.48
Step by Step Solution
- Step 1: Write the proportion equation
220,861,530.50 : 304,802,548.36 = 121,742,054.33 : x - Step 2: Convert to fraction form
220,861,530.50/304,802,548.36 = 121,742,054.33/x - Step 3: Cross multiply
220,861,530.50x = 304,802,548.36 × 121,742,054.33 - Step 4: Simplify right side
220,861,530.50x = 37,107,288,400,537,208 - Step 5: Solve for x
x = 37,107,288,400,537,208/220,861,530.50 - Step 6: Final answer
x = 168,011,551.48
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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.