Finding the Fourth Proportional to 10,729,431.60, 16,083,649.80 and 4,331,144.40
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Solution
The fourth proportional to 10,729,431.60, 16,083,649.80 and 4,331,144.40 is: 6,492,479.04
Step by Step Solution
- Step 1: Write the proportion equation
10,729,431.60 : 16,083,649.80 = 4,331,144.40 : x - Step 2: Convert to fraction form
10,729,431.60/16,083,649.80 = 4,331,144.40/x - Step 3: Cross multiply
10,729,431.60x = 16,083,649.80 × 4,331,144.40 - Step 4: Simplify right side
10,729,431.60x = 69,660,609,762,831.13 - Step 5: Solve for x
x = 69,660,609,762,831.13/10,729,431.60 - Step 6: Final answer
x = 6,492,479.04
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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.