Finding the Fourth Proportional to 288,151,531.41, 397,649,246.58 and 155,992,528.07
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Solution
The fourth proportional to 288,151,531.41, 397,649,246.58 and 155,992,528.07 is: 215,269,760.86
Step by Step Solution
- Step 1: Write the proportion equation
288,151,531.41 : 397,649,246.58 = 155,992,528.07 : x - Step 2: Convert to fraction form
288,151,531.41/397,649,246.58 = 155,992,528.07/x - Step 3: Cross multiply
288,151,531.41x = 397,649,246.58 × 155,992,528.07 - Step 4: Simplify right side
288,151,531.41x = 62,030,311,259,145,000 - Step 5: Solve for x
x = 62,030,311,259,145,000/288,151,531.41 - Step 6: Final answer
x = 215,269,760.86
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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.