Finding the Fourth Proportional to 86,029,577.80, 129,193,665.90 and 45,718,793.80
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Solution
The fourth proportional to 86,029,577.80, 129,193,665.90 and 45,718,793.80 is: 68,657,532.94
Step by Step Solution
- Step 1: Write the proportion equation
86,029,577.80 : 129,193,665.90 = 45,718,793.80 : x - Step 2: Convert to fraction form
86,029,577.80/129,193,665.90 = 45,718,793.80/x - Step 3: Cross multiply
86,029,577.80x = 129,193,665.90 × 45,718,793.80 - Step 4: Simplify right side
86,029,577.80x = 5,906,578,571,548,191 - Step 5: Solve for x
x = 5,906,578,571,548,191/86,029,577.80 - Step 6: Final answer
x = 68,657,532.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.