Finding the Fourth Proportional to 5,640,740.20, 8,457,999.90 and 2,271,140.20
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Solution
The fourth proportional to 5,640,740.20, 8,457,999.90 and 2,271,140.20 is: 3,405,457.95
Step by Step Solution
- Step 1: Write the proportion equation
5,640,740.20 : 8,457,999.90 = 2,271,140.20 : x - Step 2: Convert to fraction form
5,640,740.20/8,457,999.90 = 2,271,140.20/x - Step 3: Cross multiply
5,640,740.20x = 8,457,999.90 × 2,271,140.20 - Step 4: Simplify right side
5,640,740.20x = 19,209,303,584,485.98 - Step 5: Solve for x
x = 19,209,303,584,485.98/5,640,740.20 - Step 6: Final answer
x = 3,405,457.95
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1.5x scale
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.