Finding the Fourth Proportional to 12,457,414.20, 18,688,745.70 and 3,938,611.80
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Solution
The fourth proportional to 12,457,414.20, 18,688,745.70 and 3,938,611.80 is: 5,908,747.45
Step by Step Solution
- Step 1: Write the proportion equation
12,457,414.20 : 18,688,745.70 = 3,938,611.80 : x - Step 2: Convert to fraction form
12,457,414.20/18,688,745.70 = 3,938,611.80/x - Step 3: Cross multiply
12,457,414.20x = 18,688,745.70 × 3,938,611.80 - Step 4: Simplify right side
12,457,414.20x = 73,607,714,341,219.25 - Step 5: Solve for x
x = 73,607,714,341,219.25/12,457,414.20 - Step 6: Final answer
x = 5,908,747.45
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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.