Finding the Fourth Proportional to 68,361,153.36, 94,332,413.76 and 40,478,861.52
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Solution
The fourth proportional to 68,361,153.36, 94,332,413.76 and 40,478,861.52 is: 55,857,289.20
Step by Step Solution
- Step 1: Write the proportion equation
68,361,153.36 : 94,332,413.76 = 40,478,861.52 : x - Step 2: Convert to fraction form
68,361,153.36/94,332,413.76 = 40,478,861.52/x - Step 3: Cross multiply
68,361,153.36x = 94,332,413.76 × 40,478,861.52 - Step 4: Simplify right side
68,361,153.36x = 3,818,468,713,438,383 - Step 5: Solve for x
x = 3,818,468,713,438,383/68,361,153.36 - Step 6: Final answer
x = 55,857,289.20
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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.