Finding the Fourth Proportional to 165,888,163.20, 248,832,244.80 and 148,420,156.80
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Solution
The fourth proportional to 165,888,163.20, 248,832,244.80 and 148,420,156.80 is: 222,630,235.20
Step by Step Solution
- Step 1: Write the proportion equation
165,888,163.20 : 248,832,244.80 = 148,420,156.80 : x - Step 2: Convert to fraction form
165,888,163.20/248,832,244.80 = 148,420,156.80/x - Step 3: Cross multiply
165,888,163.20x = 248,832,244.80 × 148,420,156.80 - Step 4: Simplify right side
165,888,163.20x = 36,931,720,790,111,992 - Step 5: Solve for x
x = 36,931,720,790,111,992/165,888,163.20 - Step 6: Final answer
x = 222,630,235.20
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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.