Finding the Fourth Proportional to 136,128,086.91, 204,201,434.84 and 39,076,331.49
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Solution
The fourth proportional to 136,128,086.91, 204,201,434.84 and 39,076,331.49 is: 58,617,168.14
Step by Step Solution
- Step 1: Write the proportion equation
136,128,086.91 : 204,201,434.84 = 39,076,331.49 : x - Step 2: Convert to fraction form
136,128,086.91/204,201,434.84 = 39,076,331.49/x - Step 3: Cross multiply
136,128,086.91x = 204,201,434.84 × 39,076,331.49 - Step 4: Simplify right side
136,128,086.91x = 7,979,442,958,346,094 - Step 5: Solve for x
x = 7,979,442,958,346,094/136,128,086.91 - Step 6: Final answer
x = 58,617,168.14
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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.