Finding the Fourth Proportional to 19,669,505.70, 29,504,258.55 and 18,409,793.70
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Solution
The fourth proportional to 19,669,505.70, 29,504,258.55 and 18,409,793.70 is: 27,614,690.55
Step by Step Solution
- Step 1: Write the proportion equation
19,669,505.70 : 29,504,258.55 = 18,409,793.70 : x - Step 2: Convert to fraction form
19,669,505.70/29,504,258.55 = 18,409,793.70/x - Step 3: Cross multiply
19,669,505.70x = 29,504,258.55 × 18,409,793.70 - Step 4: Simplify right side
19,669,505.70x = 543,167,313,176,961.12 - Step 5: Solve for x
x = 543,167,313,176,961.12/19,669,505.70 - Step 6: Final answer
x = 27,614,690.55
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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.