Finding the Fourth Proportional to 5,173,408.34, 7,138,961.97 and 3,107,196.18
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Solution
The fourth proportional to 5,173,408.34, 7,138,961.97 and 3,107,196.18 is: 4,287,725.60
Step by Step Solution
- Step 1: Write the proportion equation
5,173,408.34 : 7,138,961.97 = 3,107,196.18 : x - Step 2: Convert to fraction form
5,173,408.34/7,138,961.97 = 3,107,196.18/x - Step 3: Cross multiply
5,173,408.34x = 7,138,961.97 × 3,107,196.18 - Step 4: Simplify right side
5,173,408.34x = 22,182,155,350,697.29 - Step 5: Solve for x
x = 22,182,155,350,697.29/5,173,408.34 - Step 6: Final answer
x = 4,287,725.60
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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.