Finding the Fourth Proportional to 38,988,135.07, 53,801,580.27 and 21,343,654.98
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Solution
The fourth proportional to 38,988,135.07, 53,801,580.27 and 21,343,654.98 is: 29,453,123.75
Step by Step Solution
- Step 1: Write the proportion equation
38,988,135.07 : 53,801,580.27 = 21,343,654.98 : x - Step 2: Convert to fraction form
38,988,135.07/53,801,580.27 = 21,343,654.98/x - Step 3: Cross multiply
38,988,135.07x = 53,801,580.27 × 21,343,654.98 - Step 4: Simplify right side
38,988,135.07x = 1,148,322,366,741,694 - Step 5: Solve for x
x = 1,148,322,366,741,694/38,988,135.07 - Step 6: Final answer
x = 29,453,123.75
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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.