Finding the Fourth Proportional to 13,165,134.68, 18,171,748.14 and 7,659,804.44
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Solution
The fourth proportional to 13,165,134.68, 18,171,748.14 and 7,659,804.44 is: 10,572,777.30
Step by Step Solution
- Step 1: Write the proportion equation
13,165,134.68 : 18,171,748.14 = 7,659,804.44 : x - Step 2: Convert to fraction form
13,165,134.68/18,171,748.14 = 7,659,804.44/x - Step 3: Cross multiply
13,165,134.68x = 18,171,748.14 × 7,659,804.44 - Step 4: Simplify right side
13,165,134.68x = 139,192,037,085,333.75 - Step 5: Solve for x
x = 139,192,037,085,333.75/13,165,134.68 - Step 6: Final answer
x = 10,572,777.30
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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.