Finding the Fourth Proportional to 38,438,178.96, 53,044,690.56 and 21,034,523.28
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Solution
The fourth proportional to 38,438,178.96, 53,044,690.56 and 21,034,523.28 is: 29,027,644.09
Step by Step Solution
- Step 1: Write the proportion equation
38,438,178.96 : 53,044,690.56 = 21,034,523.28 : x - Step 2: Convert to fraction form
38,438,178.96/53,044,690.56 = 21,034,523.28/x - Step 3: Cross multiply
38,438,178.96x = 53,044,690.56 × 21,034,523.28 - Step 4: Simplify right side
38,438,178.96x = 1,115,769,778,464,716.38 - Step 5: Solve for x
x = 1,115,769,778,464,716.38/38,438,178.96 - Step 6: Final answer
x = 29,027,644.09
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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.