Finding the Fourth Proportional to 299,657,294.80, 449,515,879.80 and 81,311,102.80
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Solution
The fourth proportional to 299,657,294.80, 449,515,879.80 and 81,311,102.80 is: 121,974,777.68
Step by Step Solution
- Step 1: Write the proportion equation
299,657,294.80 : 449,515,879.80 = 81,311,102.80 : x - Step 2: Convert to fraction form
299,657,294.80/449,515,879.80 = 81,311,102.80/x - Step 3: Cross multiply
299,657,294.80x = 449,515,879.80 × 81,311,102.80 - Step 4: Simplify right side
299,657,294.80x = 36,550,631,912,650,240 - Step 5: Solve for x
x = 36,550,631,912,650,240/299,657,294.80 - Step 6: Final answer
x = 121,974,777.68
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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.