Finding the Fourth Proportional to 13,165,135.68, 18,171,749.52 and 7,659,805.44
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Solution
The fourth proportional to 13,165,135.68, 18,171,749.52 and 7,659,805.44 is: 10,572,778.68
Step by Step Solution
- Step 1: Write the proportion equation
13,165,135.68 : 18,171,749.52 = 7,659,805.44 : x - Step 2: Convert to fraction form
13,165,135.68/18,171,749.52 = 7,659,805.44/x - Step 3: Cross multiply
13,165,135.68x = 18,171,749.52 × 7,659,805.44 - Step 4: Simplify right side
13,165,135.68x = 139,192,065,827,613.39 - Step 5: Solve for x
x = 139,192,065,827,613.39/13,165,135.68 - Step 6: Final answer
x = 10,572,778.68
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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.