Finding the Fourth Proportional to 6,431,414.56, 8,875,456.08 and 3,531,072.80
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Solution
The fourth proportional to 6,431,414.56, 8,875,456.08 and 3,531,072.80 is: 4,872,937.56
Step by Step Solution
- Step 1: Write the proportion equation
6,431,414.56 : 8,875,456.08 = 3,531,072.80 : x - Step 2: Convert to fraction form
6,431,414.56/8,875,456.08 = 3,531,072.80/x - Step 3: Cross multiply
6,431,414.56x = 8,875,456.08 × 3,531,072.80 - Step 4: Simplify right side
6,431,414.56x = 31,339,881,551,682.62 - Step 5: Solve for x
x = 31,339,881,551,682.62/6,431,414.56 - Step 6: Final answer
x = 4,872,937.56
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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.