Finding the Fourth Proportional to 80,734,201.80, 121,101,302.70 and 66,385,294.80
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Solution
The fourth proportional to 80,734,201.80, 121,101,302.70 and 66,385,294.80 is: 99,577,942.20
Step by Step Solution
- Step 1: Write the proportion equation
80,734,201.80 : 121,101,302.70 = 66,385,294.80 : x - Step 2: Convert to fraction form
80,734,201.80/121,101,302.70 = 66,385,294.80/x - Step 3: Cross multiply
80,734,201.80x = 121,101,302.70 × 66,385,294.80 - Step 4: Simplify right side
80,734,201.80x = 8,039,345,680,403,536 - Step 5: Solve for x
x = 8,039,345,680,403,536/80,734,201.80 - Step 6: Final answer
x = 99,577,942.20
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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.