Finding the Fourth Proportional to 397,792,478.16, 548,959,307.10 and 228,274,340.84
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Solution
The fourth proportional to 397,792,478.16, 548,959,307.10 and 228,274,340.84 is: 315,021,854.00
Step by Step Solution
- Step 1: Write the proportion equation
397,792,478.16 : 548,959,307.10 = 228,274,340.84 : x - Step 2: Convert to fraction form
397,792,478.16/548,959,307.10 = 228,274,340.84/x - Step 3: Cross multiply
397,792,478.16x = 548,959,307.10 × 228,274,340.84 - Step 4: Simplify right side
397,792,478.16x = 125,313,323,976,235,632 - Step 5: Solve for x
x = 125,313,323,976,235,632/397,792,478.16 - Step 6: Final answer
x = 315,021,854.00
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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.