Finding the Fourth Proportional to 20,804,625.87, 28,712,544.75 and 11,984,381.97
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Solution
The fourth proportional to 20,804,625.87, 28,712,544.75 and 11,984,381.97 is: 16,539,691.98
Step by Step Solution
- Step 1: Write the proportion equation
20,804,625.87 : 28,712,544.75 = 11,984,381.97 : x - Step 2: Convert to fraction form
20,804,625.87/28,712,544.75 = 11,984,381.97/x - Step 3: Cross multiply
20,804,625.87x = 28,712,544.75 × 11,984,381.97 - Step 4: Simplify right side
20,804,625.87x = 344,102,103,614,718.19 - Step 5: Solve for x
x = 344,102,103,614,718.19/20,804,625.87 - Step 6: Final answer
x = 16,539,691.98
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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.