Finding the Fourth Proportional to 8,305,152.30, 12,457,728.45 and 8,249,165.10
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Solution
The fourth proportional to 8,305,152.30, 12,457,728.45 and 8,249,165.10 is: 12,373,747.65
Step by Step Solution
- Step 1: Write the proportion equation
8,305,152.30 : 12,457,728.45 = 8,249,165.10 : x - Step 2: Convert to fraction form
8,305,152.30/12,457,728.45 = 8,249,165.10/x - Step 3: Cross multiply
8,305,152.30x = 12,457,728.45 × 8,249,165.10 - Step 4: Simplify right side
8,305,152.30x = 102,765,858,755,017.08 - Step 5: Solve for x
x = 102,765,858,755,017.08/8,305,152.30 - Step 6: Final answer
x = 12,373,747.65
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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.