Finding the Fourth Proportional to 7,079,443.20, 10,621,413.36 and 2,982,929.76
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Solution
The fourth proportional to 7,079,443.20, 10,621,413.36 and 2,982,929.76 is: 4,475,342.07
Step by Step Solution
- Step 1: Write the proportion equation
7,079,443.20 : 10,621,413.36 = 2,982,929.76 : x - Step 2: Convert to fraction form
7,079,443.20/10,621,413.36 = 2,982,929.76/x - Step 3: Cross multiply
7,079,443.20x = 10,621,413.36 × 2,982,929.76 - Step 4: Simplify right side
7,079,443.20x = 31,682,930,004,805.59 - Step 5: Solve for x
x = 31,682,930,004,805.59/7,079,443.20 - Step 6: Final answer
x = 4,475,342.07
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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.