Finding the Fourth Proportional to 6,399,219.80, 9,598,829.70 and 4,698,608.60
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Solution
The fourth proportional to 6,399,219.80, 9,598,829.70 and 4,698,608.60 is: 7,047,912.90
Step by Step Solution
- Step 1: Write the proportion equation
6,399,219.80 : 9,598,829.70 = 4,698,608.60 : x - Step 2: Convert to fraction form
6,399,219.80/9,598,829.70 = 4,698,608.60/x - Step 3: Cross multiply
6,399,219.80x = 9,598,829.70 × 4,698,608.60 - Step 4: Simplify right side
6,399,219.80x = 45,101,143,778,355.41 - Step 5: Solve for x
x = 45,101,143,778,355.41/6,399,219.80 - Step 6: Final answer
x = 7,047,912.90
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Similar ratio
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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.