Finding the Fourth Proportional to 68,532,138.60, 102,798,207.90 and 65,508,829.80
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Solution
The fourth proportional to 68,532,138.60, 102,798,207.90 and 65,508,829.80 is: 98,263,244.70
Step by Step Solution
- Step 1: Write the proportion equation
68,532,138.60 : 102,798,207.90 = 65,508,829.80 : x - Step 2: Convert to fraction form
68,532,138.60/102,798,207.90 = 65,508,829.80/x - Step 3: Cross multiply
68,532,138.60x = 102,798,207.90 × 65,508,829.80 - Step 4: Simplify right side
68,532,138.60x = 6,734,190,305,066,116 - Step 5: Solve for x
x = 6,734,190,305,066,116/68,532,138.60 - Step 6: Final answer
x = 98,263,244.70
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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.