Finding the Fourth Proportional to 38,891,732.16, 53,671,672.56 and 21,489,198.48
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Solution
The fourth proportional to 38,891,732.16, 53,671,672.56 and 21,489,198.48 is: 29,655,691.85
Step by Step Solution
- Step 1: Write the proportion equation
38,891,732.16 : 53,671,672.56 = 21,489,198.48 : x - Step 2: Convert to fraction form
38,891,732.16/53,671,672.56 = 21,489,198.48/x - Step 3: Cross multiply
38,891,732.16x = 53,671,672.56 × 21,489,198.48 - Step 4: Simplify right side
38,891,732.16x = 1,153,361,224,395,409.75 - Step 5: Solve for x
x = 1,153,361,224,395,409.75/38,891,732.16 - Step 6: Final answer
x = 29,655,691.85
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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.