Finding the Fourth Proportional to 72,183,685.80, 108,275,528.70 and 55,177,573.80
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Solution
The fourth proportional to 72,183,685.80, 108,275,528.70 and 55,177,573.80 is: 82,766,360.70
Step by Step Solution
- Step 1: Write the proportion equation
72,183,685.80 : 108,275,528.70 = 55,177,573.80 : x - Step 2: Convert to fraction form
72,183,685.80/108,275,528.70 = 55,177,573.80/x - Step 3: Cross multiply
72,183,685.80x = 108,275,528.70 × 55,177,573.80 - Step 4: Simplify right side
72,183,685.80x = 5,974,380,975,578,268 - Step 5: Solve for x
x = 5,974,380,975,578,268/72,183,685.80 - Step 6: Final answer
x = 82,766,360.70
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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.