Finding the Fourth Proportional to 38,665,651.78, 53,358,534.48 and 22,151,122.75
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Solution
The fourth proportional to 38,665,651.78, 53,358,534.48 and 22,151,122.75 is: 30,568,512.17
Step by Step Solution
- Step 1: Write the proportion equation
38,665,651.78 : 53,358,534.48 = 22,151,122.75 : x - Step 2: Convert to fraction form
38,665,651.78/53,358,534.48 = 22,151,122.75/x - Step 3: Cross multiply
38,665,651.78x = 53,358,534.48 × 22,151,122.75 - Step 4: Simplify right side
38,665,651.78x = 1,181,951,447,026,587.25 - Step 5: Solve for x
x = 1,181,951,447,026,587.25/38,665,651.78 - Step 6: Final answer
x = 30,568,512.17
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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.