Finding the Fourth Proportional to 8,161,215.90, 12,241,823.85 and 2,481,431.10
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Solution
The fourth proportional to 8,161,215.90, 12,241,823.85 and 2,481,431.10 is: 3,722,146.65
Step by Step Solution
- Step 1: Write the proportion equation
8,161,215.90 : 12,241,823.85 = 2,481,431.10 : x - Step 2: Convert to fraction form
8,161,215.90/12,241,823.85 = 2,481,431.10/x - Step 3: Cross multiply
8,161,215.90x = 12,241,823.85 × 2,481,431.10 - Step 4: Simplify right side
8,161,215.90x = 30,377,242,422,111.73 - Step 5: Solve for x
x = 30,377,242,422,111.73/8,161,215.90 - Step 6: Final answer
x = 3,722,146.65
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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.