Finding the Fourth Proportional to 5,623,675.80, 8,435,513.70 and 4,119,624.60
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Solution
The fourth proportional to 5,623,675.80, 8,435,513.70 and 4,119,624.60 is: 6,179,436.90
Step by Step Solution
- Step 1: Write the proportion equation
5,623,675.80 : 8,435,513.70 = 4,119,624.60 : x - Step 2: Convert to fraction form
5,623,675.80/8,435,513.70 = 4,119,624.60/x - Step 3: Cross multiply
5,623,675.80x = 8,435,513.70 × 4,119,624.60 - Step 4: Simplify right side
5,623,675.80x = 34,751,149,752,157.02 - Step 5: Solve for x
x = 34,751,149,752,157.02/5,623,675.80 - Step 6: Final answer
x = 6,179,436.90
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Double scale
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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.