Finding the Fourth Proportional to 69,850,286.92, 96,396,300.18 and 38,910,447.88
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Solution
The fourth proportional to 69,850,286.92, 96,396,300.18 and 38,910,447.88 is: 53,698,035.89
Step by Step Solution
- Step 1: Write the proportion equation
69,850,286.92 : 96,396,300.18 = 38,910,447.88 : x - Step 2: Convert to fraction form
69,850,286.92/96,396,300.18 = 38,910,447.88/x - Step 3: Cross multiply
69,850,286.92x = 96,396,300.18 × 38,910,447.88 - Step 4: Simplify right side
69,850,286.92x = 3,750,823,213,978,725 - Step 5: Solve for x
x = 3,750,823,213,978,725/69,850,286.92 - Step 6: Final answer
x = 53,698,035.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.