Finding the Fourth Proportional to 20,609,542.83, 28,440,058.97 and 11,441,595.09
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Solution
The fourth proportional to 20,609,542.83, 28,440,058.97 and 11,441,595.09 is: 15,788,784.93
Step by Step Solution
- Step 1: Write the proportion equation
20,609,542.83 : 28,440,058.97 = 11,441,595.09 : x - Step 2: Convert to fraction form
20,609,542.83/28,440,058.97 = 11,441,595.09/x - Step 3: Cross multiply
20,609,542.83x = 28,440,058.97 × 11,441,595.09 - Step 4: Simplify right side
20,609,542.83x = 325,399,639,205,716.69 - Step 5: Solve for x
x = 325,399,639,205,716.69/20,609,542.83 - Step 6: Final answer
x = 15,788,784.93
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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.