Finding the Fourth Proportional to 80,852,778.70, 121,279,168.05 and 44,447,101.90
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Solution
The fourth proportional to 80,852,778.70, 121,279,168.05 and 44,447,101.90 is: 66,670,652.85
Step by Step Solution
- Step 1: Write the proportion equation
80,852,778.70 : 121,279,168.05 = 44,447,101.90 : x - Step 2: Convert to fraction form
80,852,778.70/121,279,168.05 = 44,447,101.90/x - Step 3: Cross multiply
80,852,778.70x = 121,279,168.05 × 44,447,101.90 - Step 4: Simplify right side
80,852,778.70x = 5,390,507,540,665,574 - Step 5: Solve for x
x = 5,390,507,540,665,574/80,852,778.70 - Step 6: Final answer
x = 66,670,652.85
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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.