Finding the Fourth Proportional to 457,528,356.48, 685,906,806.24 and 198,548,482.08
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Solution
The fourth proportional to 457,528,356.48, 685,906,806.24 and 198,548,482.08 is: 297,655,332.83
Step by Step Solution
- Step 1: Write the proportion equation
457,528,356.48 : 685,906,806.24 = 198,548,482.08 : x - Step 2: Convert to fraction form
457,528,356.48/685,906,806.24 = 198,548,482.08/x - Step 3: Cross multiply
457,528,356.48x = 685,906,806.24 × 198,548,482.08 - Step 4: Simplify right side
457,528,356.48x = 136,185,755,227,292,688 - Step 5: Solve for x
x = 136,185,755,227,292,688/457,528,356.48 - Step 6: Final answer
x = 297,655,332.83
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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.