Finding the Fourth Proportional to 72,183,811.80, 108,275,717.70 and 55,177,699.80
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Solution
The fourth proportional to 72,183,811.80, 108,275,717.70 and 55,177,699.80 is: 82,766,549.70
Step by Step Solution
- Step 1: Write the proportion equation
72,183,811.80 : 108,275,717.70 = 55,177,699.80 : x - Step 2: Convert to fraction form
72,183,811.80/108,275,717.70 = 55,177,699.80/x - Step 3: Cross multiply
72,183,811.80x = 108,275,717.70 × 55,177,699.80 - Step 4: Simplify right side
72,183,811.80x = 5,974,405,046,880,146 - Step 5: Solve for x
x = 5,974,405,046,880,146/72,183,811.80 - Step 6: Final answer
x = 82,766,549.70
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1.5x scale
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.