Finding the Fourth Proportional to 80,881,403.70, 121,322,105.55 and 60,726,011.70
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Solution
The fourth proportional to 80,881,403.70, 121,322,105.55 and 60,726,011.70 is: 91,089,017.55
Step by Step Solution
- Step 1: Write the proportion equation
80,881,403.70 : 121,322,105.55 = 60,726,011.70 : x - Step 2: Convert to fraction form
80,881,403.70/121,322,105.55 = 60,726,011.70/x - Step 3: Cross multiply
80,881,403.70x = 121,322,105.55 × 60,726,011.70 - Step 4: Simplify right side
80,881,403.70x = 7,367,407,601,097,935 - Step 5: Solve for x
x = 7,367,407,601,097,935/80,881,403.70 - Step 6: Final answer
x = 91,089,017.55
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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.