Finding the Fourth Proportional to 5,115,471.86, 7,672,585.84 and 3,196,554.32
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Solution
The fourth proportional to 5,115,471.86, 7,672,585.84 and 3,196,554.32 is: 4,794,442.84
Step by Step Solution
- Step 1: Write the proportion equation
5,115,471.86 : 7,672,585.84 = 3,196,554.32 : x - Step 2: Convert to fraction form
5,115,471.86/7,672,585.84 = 3,196,554.32/x - Step 3: Cross multiply
5,115,471.86x = 7,672,585.84 × 3,196,554.32 - Step 4: Simplify right side
5,115,471.86x = 24,525,837,423,612.91 - Step 5: Solve for x
x = 24,525,837,423,612.91/5,115,471.86 - Step 6: Final answer
x = 4,794,442.84
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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.