Finding the Fourth Proportional to 288,151,531.29, 397,649,246.41 and 155,992,527.95
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Solution
The fourth proportional to 288,151,531.29, 397,649,246.41 and 155,992,527.95 is: 215,269,760.70
Step by Step Solution
- Step 1: Write the proportion equation
288,151,531.29 : 397,649,246.41 = 155,992,527.95 : x - Step 2: Convert to fraction form
288,151,531.29/397,649,246.41 = 155,992,527.95/x - Step 3: Cross multiply
288,151,531.29x = 397,649,246.41 × 155,992,527.95 - Step 4: Simplify right side
288,151,531.29x = 62,030,311,184,908,360 - Step 5: Solve for x
x = 62,030,311,184,908,360/288,151,531.29 - Step 6: Final answer
x = 215,269,760.70
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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.