Finding the Fourth Proportional to 220,542,415.80, 330,813,623.70 and 220,542,415.80
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Solution
The fourth proportional to 220,542,415.80, 330,813,623.70 and 220,542,415.80 is: 330,813,623.70
Step by Step Solution
- Step 1: Write the proportion equation
220,542,415.80 : 330,813,623.70 = 220,542,415.80 : x - Step 2: Convert to fraction form
220,542,415.80/330,813,623.70 = 220,542,415.80/x - Step 3: Cross multiply
220,542,415.80x = 330,813,623.70 × 220,542,415.80 - Step 4: Simplify right side
220,542,415.80x = 72,958,435,750,350,128 - Step 5: Solve for x
x = 72,958,435,750,350,128/220,542,415.80 - Step 6: Final answer
x = 330,813,623.70
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1.5x scale
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.