Finding the Fourth Proportional to 12,460,262.40, 18,660,902.40 and 8,449,459.20
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Solution
The fourth proportional to 12,460,262.40, 18,660,902.40 and 8,449,459.20 is: 12,654,190.45
Step by Step Solution
- Step 1: Write the proportion equation
12,460,262.40 : 18,660,902.40 = 8,449,459.20 : x - Step 2: Convert to fraction form
12,460,262.40/18,660,902.40 = 8,449,459.20/x - Step 3: Cross multiply
12,460,262.40x = 18,660,902.40 × 8,449,459.20 - Step 4: Simplify right side
12,460,262.40x = 157,674,533,463,982.06 - Step 5: Solve for x
x = 157,674,533,463,982.06/12,460,262.40 - Step 6: Final answer
x = 12,654,190.45
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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.