Finding the Fourth Proportional to 10,658,578.20, 15,964,247.70 and 8,769,010.20
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Solution
The fourth proportional to 10,658,578.20, 15,964,247.70 and 8,769,010.20 is: 13,134,083.02
Step by Step Solution
- Step 1: Write the proportion equation
10,658,578.20 : 15,964,247.70 = 8,769,010.20 : x - Step 2: Convert to fraction form
10,658,578.20/15,964,247.70 = 8,769,010.20/x - Step 3: Cross multiply
10,658,578.20x = 15,964,247.70 × 8,769,010.20 - Step 4: Simplify right side
10,658,578.20x = 139,990,650,916,626.52 - Step 5: Solve for x
x = 139,990,650,916,626.52/10,658,578.20 - Step 6: Final answer
x = 13,134,083.02
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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.