Finding the Fourth Proportional to 310,647,531.81, 428,702,704.68 and 169,527,863.91
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Solution
The fourth proportional to 310,647,531.81, 428,702,704.68 and 169,527,863.91 is: 233,953,424.17
Step by Step Solution
- Step 1: Write the proportion equation
310,647,531.81 : 428,702,704.68 = 169,527,863.91 : x - Step 2: Convert to fraction form
310,647,531.81/428,702,704.68 = 169,527,863.91/x - Step 3: Cross multiply
310,647,531.81x = 428,702,704.68 × 169,527,863.91 - Step 4: Simplify right side
310,647,531.81x = 72,677,053,776,839,952 - Step 5: Solve for x
x = 72,677,053,776,839,952/310,647,531.81 - Step 6: Final answer
x = 233,953,424.17
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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.