Finding the Fourth Proportional to 18,884,943.20, 28,334,413.20 and 6,105,864.80
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Solution
The fourth proportional to 18,884,943.20, 28,334,413.20 and 6,105,864.80 is: 9,161,059.92
Step by Step Solution
- Step 1: Write the proportion equation
18,884,943.20 : 28,334,413.20 = 6,105,864.80 : x - Step 2: Convert to fraction form
18,884,943.20/28,334,413.20 = 6,105,864.80/x - Step 3: Cross multiply
18,884,943.20x = 28,334,413.20 × 6,105,864.80 - Step 4: Simplify right side
18,884,943.20x = 173,006,096,186,535.34 - Step 5: Solve for x
x = 173,006,096,186,535.34/18,884,943.20 - Step 6: Final answer
x = 9,161,059.92
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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.