Finding the Fourth Proportional to 13,037,175.12, 17,991,165.68 and 7,236,006.96
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Solution
The fourth proportional to 13,037,175.12, 17,991,165.68 and 7,236,006.96 is: 9,985,614.13
Step by Step Solution
- Step 1: Write the proportion equation
13,037,175.12 : 17,991,165.68 = 7,236,006.96 : x - Step 2: Convert to fraction form
13,037,175.12/17,991,165.68 = 7,236,006.96/x - Step 3: Cross multiply
13,037,175.12x = 17,991,165.68 × 7,236,006.96 - Step 4: Simplify right side
13,037,175.12x = 130,184,200,078,993.12 - Step 5: Solve for x
x = 130,184,200,078,993.12/13,037,175.12 - Step 6: Final answer
x = 9,985,614.13
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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.