Finding the Fourth Proportional to 8,638,636.43, 11,921,104.02 and 4,967,465.48
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Solution
The fourth proportional to 8,638,636.43, 11,921,104.02 and 4,967,465.48 is: 6,854,979.17
Step by Step Solution
- Step 1: Write the proportion equation
8,638,636.43 : 11,921,104.02 = 4,967,465.48 : x - Step 2: Convert to fraction form
8,638,636.43/11,921,104.02 = 4,967,465.48/x - Step 3: Cross multiply
8,638,636.43x = 11,921,104.02 × 4,967,465.48 - Step 4: Simplify right side
8,638,636.43x = 59,217,672,773,622.05 - Step 5: Solve for x
x = 59,217,672,773,622.05/8,638,636.43 - Step 6: Final answer
x = 6,854,979.17
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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.