Finding the Fourth Proportional to 54,243,009.20, 81,364,513.80 and 18,341,217.20
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Solution
The fourth proportional to 54,243,009.20, 81,364,513.80 and 18,341,217.20 is: 27,511,825.80
Step by Step Solution
- Step 1: Write the proportion equation
54,243,009.20 : 81,364,513.80 = 18,341,217.20 : x - Step 2: Convert to fraction form
54,243,009.20/81,364,513.80 = 18,341,217.20/x - Step 3: Cross multiply
54,243,009.20x = 81,364,513.80 × 18,341,217.20 - Step 4: Simplify right side
54,243,009.20x = 1,492,324,219,978,197.25 - Step 5: Solve for x
x = 1,492,324,219,978,197.25/54,243,009.20 - Step 6: Final answer
x = 27,511,825.80
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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.