Finding the Fourth Proportional to 18,472,000.40, 27,708,634.20 and 5,692,403.60
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Solution
The fourth proportional to 18,472,000.40, 27,708,634.20 and 5,692,403.60 is: 8,538,800.65
Step by Step Solution
- Step 1: Write the proportion equation
18,472,000.40 : 27,708,634.20 = 5,692,403.60 : x - Step 2: Convert to fraction form
18,472,000.40/27,708,634.20 = 5,692,403.60/x - Step 3: Cross multiply
18,472,000.40x = 27,708,634.20 × 5,692,403.60 - Step 4: Simplify right side
18,472,000.40x = 157,728,729,071,163.09 - Step 5: Solve for x
x = 157,728,729,071,163.09/18,472,000.40 - Step 6: Final answer
x = 8,538,800.65
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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.