Finding the Fourth Proportional to 136,284,805.10, 204,427,207.65 and 81,865,246.70
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Solution
The fourth proportional to 136,284,805.10, 204,427,207.65 and 81,865,246.70 is: 122,797,870.05
Step by Step Solution
- Step 1: Write the proportion equation
136,284,805.10 : 204,427,207.65 = 81,865,246.70 : x - Step 2: Convert to fraction form
136,284,805.10/204,427,207.65 = 81,865,246.70/x - Step 3: Cross multiply
136,284,805.10x = 204,427,207.65 × 81,865,246.70 - Step 4: Simplify right side
136,284,805.10x = 16,735,483,786,459,378 - Step 5: Solve for x
x = 16,735,483,786,459,378/136,284,805.10 - Step 6: Final answer
x = 122,797,870.05
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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.