Finding the Fourth Proportional to 38,988,224.72, 53,801,704.36 and 21,343,744.68
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Solution
The fourth proportional to 38,988,224.72, 53,801,704.36 and 21,343,744.68 is: 29,453,247.73
Step by Step Solution
- Step 1: Write the proportion equation
38,988,224.72 : 53,801,704.36 = 21,343,744.68 : x - Step 2: Convert to fraction form
38,988,224.72/53,801,704.36 = 21,343,744.68/x - Step 3: Cross multiply
38,988,224.72x = 53,801,704.36 × 21,343,744.68 - Step 4: Simplify right side
38,988,224.72x = 1,148,329,841,208,682.75 - Step 5: Solve for x
x = 1,148,329,841,208,682.75/38,988,224.72 - Step 6: Final answer
x = 29,453,247.73
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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.