Finding the Fourth Proportional to 165,888,129.20, 248,832,193.80 and 58,193,639.60
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Solution
The fourth proportional to 165,888,129.20, 248,832,193.80 and 58,193,639.60 is: 87,290,459.40
Step by Step Solution
- Step 1: Write the proportion equation
165,888,129.20 : 248,832,193.80 = 58,193,639.60 : x - Step 2: Convert to fraction form
165,888,129.20/248,832,193.80 = 58,193,639.60/x - Step 3: Cross multiply
165,888,129.20x = 248,832,193.80 × 58,193,639.60 - Step 4: Simplify right side
165,888,129.20x = 14,480,451,006,874,556 - Step 5: Solve for x
x = 14,480,451,006,874,556/165,888,129.20 - Step 6: Final answer
x = 87,290,459.40
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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.