Finding the Fourth Proportional to 8,201,930.80, 12,302,831.40 and 2,136,650.80
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Solution
The fourth proportional to 8,201,930.80, 12,302,831.40 and 2,136,650.80 is: 3,204,959.32
Step by Step Solution
- Step 1: Write the proportion equation
8,201,930.80 : 12,302,831.40 = 2,136,650.80 : x - Step 2: Convert to fraction form
8,201,930.80/12,302,831.40 = 2,136,650.80/x - Step 3: Cross multiply
8,201,930.80x = 12,302,831.40 × 2,136,650.80 - Step 4: Simplify right side
8,201,930.80x = 26,286,854,553,075.12 - Step 5: Solve for x
x = 26,286,854,553,075.12/8,201,930.80 - Step 6: Final answer
x = 3,204,959.32
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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.