Finding the Fourth Proportional to 348,830,861.80, 523,246,292.70 and 280,806,413.80
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Solution
The fourth proportional to 348,830,861.80, 523,246,292.70 and 280,806,413.80 is: 421,209,620.70
Step by Step Solution
- Step 1: Write the proportion equation
348,830,861.80 : 523,246,292.70 = 280,806,413.80 : x - Step 2: Convert to fraction form
348,830,861.80/523,246,292.70 = 280,806,413.80/x - Step 3: Cross multiply
348,830,861.80x = 523,246,292.70 × 280,806,413.80 - Step 4: Simplify right side
348,830,861.80x = 146,930,914,987,232,128 - Step 5: Solve for x
x = 146,930,914,987,232,128/348,830,861.80 - Step 6: Final answer
x = 421,209,620.70
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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.