Finding the Fourth Proportional to 19,969,811.12, 27,550,942.60 and 14,755,390.76
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Solution
The fourth proportional to 19,969,811.12, 27,550,942.60 and 14,755,390.76 is: 20,356,973.91
Step by Step Solution
- Step 1: Write the proportion equation
19,969,811.12 : 27,550,942.60 = 14,755,390.76 : x - Step 2: Convert to fraction form
19,969,811.12/27,550,942.60 = 14,755,390.76/x - Step 3: Cross multiply
19,969,811.12x = 27,550,942.60 × 14,755,390.76 - Step 4: Simplify right side
19,969,811.12x = 406,524,923,869,330.38 - Step 5: Solve for x
x = 406,524,923,869,330.38/19,969,811.12 - Step 6: Final answer
x = 20,356,973.91
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.