Finding the Fourth Proportional to 8,255,280.20, 12,372,422.70 and 7,352,486.60
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Solution
The fourth proportional to 8,255,280.20, 12,372,422.70 and 7,352,486.60 is: 11,019,380.31
Step by Step Solution
- Step 1: Write the proportion equation
8,255,280.20 : 12,372,422.70 = 7,352,486.60 : x - Step 2: Convert to fraction form
8,255,280.20/12,372,422.70 = 7,352,486.60/x - Step 3: Cross multiply
8,255,280.20x = 12,372,422.70 × 7,352,486.60 - Step 4: Simplify right side
8,255,280.20x = 90,968,072,111,285.81 - Step 5: Solve for x
x = 90,968,072,111,285.81/8,255,280.20 - Step 6: Final answer
x = 11,019,380.31
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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.