Finding the Fourth Proportional to 80,163,007.80, 120,244,511.70 and 80,163,007.80
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Solution
The fourth proportional to 80,163,007.80, 120,244,511.70 and 80,163,007.80 is: 120,244,511.70
Step by Step Solution
- Step 1: Write the proportion equation
80,163,007.80 : 120,244,511.70 = 80,163,007.80 : x - Step 2: Convert to fraction form
80,163,007.80/120,244,511.70 = 80,163,007.80/x - Step 3: Cross multiply
80,163,007.80x = 120,244,511.70 × 80,163,007.80 - Step 4: Simplify right side
80,163,007.80x = 9,639,161,729,314,292 - Step 5: Solve for x
x = 9,639,161,729,314,292/80,163,007.80 - Step 6: Final answer
x = 120,244,511.70
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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.