Finding the Fourth Proportional to 7,916,143.68, 11,866,828.32 and 3,123,872.64
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Solution
The fourth proportional to 7,916,143.68, 11,866,828.32 and 3,123,872.64 is: 4,682,893.82
Step by Step Solution
- Step 1: Write the proportion equation
7,916,143.68 : 11,866,828.32 = 3,123,872.64 : x - Step 2: Convert to fraction form
7,916,143.68/11,866,828.32 = 3,123,872.64/x - Step 3: Cross multiply
7,916,143.68x = 11,866,828.32 × 3,123,872.64 - Step 4: Simplify right side
7,916,143.68x = 37,070,460,312,425.16 - Step 5: Solve for x
x = 37,070,460,312,425.16/7,916,143.68 - Step 6: Final answer
x = 4,682,893.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.