Finding the Fourth Proportional to 78,040,625.68, 107,702,676.95 and 43,244,230.96
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Solution
The fourth proportional to 78,040,625.68, 107,702,676.95 and 43,244,230.96 is: 59,680,703.43
Step by Step Solution
- Step 1: Write the proportion equation
78,040,625.68 : 107,702,676.95 = 43,244,230.96 : x - Step 2: Convert to fraction form
78,040,625.68/107,702,676.95 = 43,244,230.96/x - Step 3: Cross multiply
78,040,625.68x = 107,702,676.95 × 43,244,230.96 - Step 4: Simplify right side
78,040,625.68x = 4,657,519,436,954,475 - Step 5: Solve for x
x = 4,657,519,436,954,475/78,040,625.68 - Step 6: Final answer
x = 59,680,703.43
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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.