Finding the Fourth Proportional to 88,660,326.40, 132,990,489.60 and 84,881,190.40
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Solution
The fourth proportional to 88,660,326.40, 132,990,489.60 and 84,881,190.40 is: 127,321,785.60
Step by Step Solution
- Step 1: Write the proportion equation
88,660,326.40 : 132,990,489.60 = 84,881,190.40 : x - Step 2: Convert to fraction form
88,660,326.40/132,990,489.60 = 84,881,190.40/x - Step 3: Cross multiply
88,660,326.40x = 132,990,489.60 × 84,881,190.40 - Step 4: Simplify right side
88,660,326.40x = 11,288,391,069,126,820 - Step 5: Solve for x
x = 11,288,391,069,126,820/88,660,326.40 - Step 6: Final answer
x = 127,321,785.60
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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.