Finding the Fourth Proportional to 457,528,222.48, 685,906,605.12 and 198,548,348.08
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Solution
The fourth proportional to 457,528,222.48, 685,906,605.12 and 198,548,348.08 is: 297,655,131.84
Step by Step Solution
- Step 1: Write the proportion equation
457,528,222.48 : 685,906,605.12 = 198,548,348.08 : x - Step 2: Convert to fraction form
457,528,222.48/685,906,605.12 = 198,548,348.08/x - Step 3: Cross multiply
457,528,222.48x = 685,906,605.12 × 198,548,348.08 - Step 4: Simplify right side
457,528,222.48x = 136,185,623,383,736,880 - Step 5: Solve for x
x = 136,185,623,383,736,880/457,528,222.48 - Step 6: Final answer
x = 297,655,131.84
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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.