Finding the Fourth Proportional to 10,393,405.80, 15,571,446.30 and 8,900,413.80
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Solution
The fourth proportional to 10,393,405.80, 15,571,446.30 and 8,900,413.80 is: 13,334,639.12
Step by Step Solution
- Step 1: Write the proportion equation
10,393,405.80 : 15,571,446.30 = 8,900,413.80 : x - Step 2: Convert to fraction form
10,393,405.80/15,571,446.30 = 8,900,413.80/x - Step 3: Cross multiply
10,393,405.80x = 15,571,446.30 × 8,900,413.80 - Step 4: Simplify right side
10,393,405.80x = 138,592,315,534,478.95 - Step 5: Solve for x
x = 138,592,315,534,478.95/10,393,405.80 - Step 6: Final answer
x = 13,334,639.12
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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.