Finding the Fourth Proportional to 29,261,578.57, 40,348,625.34 and 18,648,163.75
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Solution
The fourth proportional to 29,261,578.57, 40,348,625.34 and 18,648,163.75 is: 25,713,847.62
Step by Step Solution
- Step 1: Write the proportion equation
29,261,578.57 : 40,348,625.34 = 18,648,163.75 : x - Step 2: Convert to fraction form
29,261,578.57/40,348,625.34 = 18,648,163.75/x - Step 3: Cross multiply
29,261,578.57x = 40,348,625.34 × 18,648,163.75 - Step 4: Simplify right side
29,261,578.57x = 752,427,772,428,598.25 - Step 5: Solve for x
x = 752,427,772,428,598.25/29,261,578.57 - Step 6: Final answer
x = 25,713,847.62
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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.