Finding the Fourth Proportional to 35,128,331.39, 48,482,170.53 and 20,240,805.20
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Solution
The fourth proportional to 35,128,331.39, 48,482,170.53 and 20,240,805.20 is: 27,935,234.34
Step by Step Solution
- Step 1: Write the proportion equation
35,128,331.39 : 48,482,170.53 = 20,240,805.20 : x - Step 2: Convert to fraction form
35,128,331.39/48,482,170.53 = 20,240,805.20/x - Step 3: Cross multiply
35,128,331.39x = 48,482,170.53 × 20,240,805.20 - Step 4: Simplify right side
35,128,331.39x = 981,318,169,128,500 - Step 5: Solve for x
x = 981,318,169,128,500/35,128,331.39 - Step 6: Final answer
x = 27,935,234.34
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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.