Finding the Fourth Proportional to 38,523,480.73, 53,162,390.61 and 21,119,452.58
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Solution
The fourth proportional to 38,523,480.73, 53,162,390.61 and 21,119,452.58 is: 29,144,837.55
Step by Step Solution
- Step 1: Write the proportion equation
38,523,480.73 : 53,162,390.61 = 21,119,452.58 : x - Step 2: Convert to fraction form
38,523,480.73/53,162,390.61 = 21,119,452.58/x - Step 3: Cross multiply
38,523,480.73x = 53,162,390.61 × 21,119,452.58 - Step 4: Simplify right side
38,523,480.73x = 1,122,760,587,660,238.25 - Step 5: Solve for x
x = 1,122,760,587,660,238.25/38,523,480.73 - Step 6: Final answer
x = 29,144,837.55
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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.