Finding the Fourth Proportional to 5,389,899.11, 7,438,173.60 and 2,942,613.31
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Solution
The fourth proportional to 5,389,899.11, 7,438,173.60 and 2,942,613.31 is: 4,060,867.96
Step by Step Solution
- Step 1: Write the proportion equation
5,389,899.11 : 7,438,173.60 = 2,942,613.31 : x - Step 2: Convert to fraction form
5,389,899.11/7,438,173.60 = 2,942,613.31/x - Step 3: Cross multiply
5,389,899.11x = 7,438,173.60 × 2,942,613.31 - Step 4: Simplify right side
5,389,899.11x = 21,887,668,600,259.75 - Step 5: Solve for x
x = 21,887,668,600,259.75/5,389,899.11 - Step 6: Final answer
x = 4,060,867.96
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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.