Finding the Fourth Proportional to 39,399,668.14, 54,372,402.41 and 21,758,534.75
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Solution
The fourth proportional to 39,399,668.14, 54,372,402.41 and 21,758,534.75 is: 30,027,253.10
Step by Step Solution
- Step 1: Write the proportion equation
39,399,668.14 : 54,372,402.41 = 21,758,534.75 : x - Step 2: Convert to fraction form
39,399,668.14/54,372,402.41 = 21,758,534.75/x - Step 3: Cross multiply
39,399,668.14x = 54,372,402.41 × 21,758,534.75 - Step 4: Simplify right side
39,399,668.14x = 1,183,063,807,278,968.75 - Step 5: Solve for x
x = 1,183,063,807,278,968.75/39,399,668.14 - Step 6: Final answer
x = 30,027,253.10
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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.