Finding the Fourth Proportional to 19,813,793.40, 29,720,690.10 and 18,378,902.70
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Solution
The fourth proportional to 19,813,793.40, 29,720,690.10 and 18,378,902.70 is: 27,568,354.05
Step by Step Solution
- Step 1: Write the proportion equation
19,813,793.40 : 29,720,690.10 = 18,378,902.70 : x - Step 2: Convert to fraction form
19,813,793.40/29,720,690.10 = 18,378,902.70/x - Step 3: Cross multiply
19,813,793.40x = 29,720,690.10 × 18,378,902.70 - Step 4: Simplify right side
19,813,793.40x = 546,233,671,524,753.25 - Step 5: Solve for x
x = 546,233,671,524,753.25/19,813,793.40 - Step 6: Final answer
x = 27,568,354.05
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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.