Finding the Fourth Proportional to 827,457,654.40, 1,241,186,481.60 and 366,906,947.20
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Solution
The fourth proportional to 827,457,654.40, 1,241,186,481.60 and 366,906,947.20 is: 550,360,420.80
Step by Step Solution
- Step 1: Write the proportion equation
827,457,654.40 : 1,241,186,481.60 = 366,906,947.20 : x - Step 2: Convert to fraction form
827,457,654.40/1,241,186,481.60 = 366,906,947.20/x - Step 3: Cross multiply
827,457,654.40x = 1,241,186,481.60 × 366,906,947.20 - Step 4: Simplify right side
827,457,654.40x = 455,399,942,869,764,928 - Step 5: Solve for x
x = 455,399,942,869,764,928/827,457,654.40 - Step 6: Final answer
x = 550,360,420.80
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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.