Finding the Fourth Proportional to 209,952,213.80, 314,928,320.70 and 190,820,337.80
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Solution
The fourth proportional to 209,952,213.80, 314,928,320.70 and 190,820,337.80 is: 286,230,506.70
Step by Step Solution
- Step 1: Write the proportion equation
209,952,213.80 : 314,928,320.70 = 190,820,337.80 : x - Step 2: Convert to fraction form
209,952,213.80/314,928,320.70 = 190,820,337.80/x - Step 3: Cross multiply
209,952,213.80x = 314,928,320.70 × 190,820,337.80 - Step 4: Simplify right side
209,952,213.80x = 60,094,728,538,760,736 - Step 5: Solve for x
x = 60,094,728,538,760,736/209,952,213.80 - Step 6: Final answer
x = 286,230,506.70
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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.