Finding the Fourth Proportional to 18,459,013.80, 27,688,520.70 and 10,900,741.80
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Solution
The fourth proportional to 18,459,013.80, 27,688,520.70 and 10,900,741.80 is: 16,351,112.70
Step by Step Solution
- Step 1: Write the proportion equation
18,459,013.80 : 27,688,520.70 = 10,900,741.80 : x - Step 2: Convert to fraction form
18,459,013.80/27,688,520.70 = 10,900,741.80/x - Step 3: Cross multiply
18,459,013.80x = 27,688,520.70 × 10,900,741.80 - Step 4: Simplify right side
18,459,013.80x = 301,825,414,974,655.25 - Step 5: Solve for x
x = 301,825,414,974,655.25/18,459,013.80 - Step 6: Final answer
x = 16,351,112.70
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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.