Finding the Fourth Proportional to 71,093,615.20, 106,640,422.80 and 65,550,882.40
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Solution
The fourth proportional to 71,093,615.20, 106,640,422.80 and 65,550,882.40 is: 98,326,323.60
Step by Step Solution
- Step 1: Write the proportion equation
71,093,615.20 : 106,640,422.80 = 65,550,882.40 : x - Step 2: Convert to fraction form
71,093,615.20/106,640,422.80 = 65,550,882.40/x - Step 3: Cross multiply
71,093,615.20x = 106,640,422.80 × 65,550,882.40 - Step 4: Simplify right side
71,093,615.20x = 6,990,373,814,049,078 - Step 5: Solve for x
x = 6,990,373,814,049,078/71,093,615.20 - Step 6: Final answer
x = 98,326,323.60
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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.