Finding the Fourth Proportional to 492,276,838.26, 679,551,211.92 and 306,729,527.52
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Solution
The fourth proportional to 492,276,838.26, 679,551,211.92 and 306,729,527.52 is: 423,417,081.52
Step by Step Solution
- Step 1: Write the proportion equation
492,276,838.26 : 679,551,211.92 = 306,729,527.52 : x - Step 2: Convert to fraction form
492,276,838.26/679,551,211.92 = 306,729,527.52/x - Step 3: Cross multiply
492,276,838.26x = 679,551,211.92 × 306,729,527.52 - Step 4: Simplify right side
492,276,838.26x = 208,438,422,157,864,960 - Step 5: Solve for x
x = 208,438,422,157,864,960/492,276,838.26 - Step 6: Final answer
x = 423,417,081.52
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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.