Finding the Fourth Proportional to 38,850,538.16, 53,612,337.48 and 21,446,509.68
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Solution
The fourth proportional to 38,850,538.16, 53,612,337.48 and 21,446,509.68 is: 29,595,407.66
Step by Step Solution
- Step 1: Write the proportion equation
38,850,538.16 : 53,612,337.48 = 21,446,509.68 : x - Step 2: Convert to fraction form
38,850,538.16/53,612,337.48 = 21,446,509.68/x - Step 3: Cross multiply
38,850,538.16x = 53,612,337.48 × 21,446,509.68 - Step 4: Simplify right side
38,850,538.16x = 1,149,797,514,732,246.75 - Step 5: Solve for x
x = 1,149,797,514,732,246.75/38,850,538.16 - Step 6: Final answer
x = 29,595,407.66
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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.