Finding the Fourth Proportional to 862,275,460.80, 1,293,413,191.20 and 248,879,697.60
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Solution
The fourth proportional to 862,275,460.80, 1,293,413,191.20 and 248,879,697.60 is: 373,319,546.40
Step by Step Solution
- Step 1: Write the proportion equation
862,275,460.80 : 1,293,413,191.20 = 248,879,697.60 : x - Step 2: Convert to fraction form
862,275,460.80/1,293,413,191.20 = 248,879,697.60/x - Step 3: Cross multiply
862,275,460.80x = 1,293,413,191.20 × 248,879,697.60 - Step 4: Simplify right side
862,275,460.80x = 321,904,283,897,707,008 - Step 5: Solve for x
x = 321,904,283,897,707,008/862,275,460.80 - Step 6: Final answer
x = 373,319,546.40
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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.