Finding the Fourth Proportional to 18,459,009.80, 27,688,514.70 and 10,900,737.80
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Solution
The fourth proportional to 18,459,009.80, 27,688,514.70 and 10,900,737.80 is: 16,351,106.70
Step by Step Solution
- Step 1: Write the proportion equation
18,459,009.80 : 27,688,514.70 = 10,900,737.80 : x - Step 2: Convert to fraction form
18,459,009.80/27,688,514.70 = 10,900,737.80/x - Step 3: Cross multiply
18,459,009.80x = 27,688,514.70 × 10,900,737.80 - Step 4: Simplify right side
18,459,009.80x = 301,825,238,816,145.69 - Step 5: Solve for x
x = 301,825,238,816,145.69/18,459,009.80 - Step 6: Final answer
x = 16,351,106.70
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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.