Finding the Fourth Proportional to 492,276,838.23, 679,551,211.94 and 306,729,527.49
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Solution
The fourth proportional to 492,276,838.23, 679,551,211.94 and 306,729,527.49 is: 423,417,081.52
Step by Step Solution
- Step 1: Write the proportion equation
492,276,838.23 : 679,551,211.94 = 306,729,527.49 : x - Step 2: Convert to fraction form
492,276,838.23/679,551,211.94 = 306,729,527.49/x - Step 3: Cross multiply
492,276,838.23x = 679,551,211.94 × 306,729,527.49 - Step 4: Simplify right side
492,276,838.23x = 208,438,422,142,079,392 - Step 5: Solve for x
x = 208,438,422,142,079,392/492,276,838.23 - 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.