Finding the Fourth Proportional to 8,518,742.98, 12,770,649.51 and 3,203,691.46
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Solution
The fourth proportional to 8,518,742.98, 12,770,649.51 and 3,203,691.46 is: 4,802,729.80
Step by Step Solution
- Step 1: Write the proportion equation
8,518,742.98 : 12,770,649.51 = 3,203,691.46 : x - Step 2: Convert to fraction form
8,518,742.98/12,770,649.51 = 3,203,691.46/x - Step 3: Cross multiply
8,518,742.98x = 12,770,649.51 × 3,203,691.46 - Step 4: Simplify right side
8,518,742.98x = 40,913,220,773,840.18 - Step 5: Solve for x
x = 40,913,220,773,840.18/8,518,742.98 - Step 6: Final answer
x = 4,802,729.80
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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.