Finding the Fourth Proportional to 80,734,104.30, 121,101,156.45 and 66,385,197.30
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Solution
The fourth proportional to 80,734,104.30, 121,101,156.45 and 66,385,197.30 is: 99,577,795.95
Step by Step Solution
- Step 1: Write the proportion equation
80,734,104.30 : 121,101,156.45 = 66,385,197.30 : x - Step 2: Convert to fraction form
80,734,104.30/121,101,156.45 = 66,385,197.30/x - Step 3: Cross multiply
80,734,104.30x = 121,101,156.45 × 66,385,197.30 - Step 4: Simplify right side
80,734,104.30x = 8,039,324,164,191,417 - Step 5: Solve for x
x = 8,039,324,164,191,417/80,734,104.30 - Step 6: Final answer
x = 99,577,795.95
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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.