Finding the Fourth Proportional to 121,378,657.20, 182,067,985.80 and 121,378,657.20
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Solution
The fourth proportional to 121,378,657.20, 182,067,985.80 and 121,378,657.20 is: 182,067,985.80
Step by Step Solution
- Step 1: Write the proportion equation
121,378,657.20 : 182,067,985.80 = 121,378,657.20 : x - Step 2: Convert to fraction form
121,378,657.20/182,067,985.80 = 121,378,657.20/x - Step 3: Cross multiply
121,378,657.20x = 182,067,985.80 × 121,378,657.20 - Step 4: Simplify right side
121,378,657.20x = 22,099,167,635,512,668 - Step 5: Solve for x
x = 22,099,167,635,512,668/121,378,657.20 - Step 6: Final answer
x = 182,067,985.80
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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.