Finding the Fourth Proportional to 220,043,984.64, 303,662,497.92 and 137,585,569.92
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Solution
The fourth proportional to 220,043,984.64, 303,662,497.92 and 137,585,569.92 is: 189,869,211.41
Step by Step Solution
- Step 1: Write the proportion equation
220,043,984.64 : 303,662,497.92 = 137,585,569.92 : x - Step 2: Convert to fraction form
220,043,984.64/303,662,497.92 = 137,585,569.92/x - Step 3: Cross multiply
220,043,984.64x = 303,662,497.92 × 137,585,569.92 - Step 4: Simplify right side
220,043,984.64x = 41,779,577,839,654,016 - Step 5: Solve for x
x = 41,779,577,839,654,016/220,043,984.64 - Step 6: Final answer
x = 189,869,211.41
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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.