Finding the Fourth Proportional to 759,081,993.44, 1,138,778,287.20 and 261,027,823.62
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Solution
The fourth proportional to 759,081,993.44, 1,138,778,287.20 and 261,027,823.62 is: 391,595,137.90
Step by Step Solution
- Step 1: Write the proportion equation
759,081,993.44 : 1,138,778,287.20 = 261,027,823.62 : x - Step 2: Convert to fraction form
759,081,993.44/1,138,778,287.20 = 261,027,823.62/x - Step 3: Cross multiply
759,081,993.44x = 1,138,778,287.20 × 261,027,823.62 - Step 4: Simplify right side
759,081,993.44x = 297,252,817,897,797,760 - Step 5: Solve for x
x = 297,252,817,897,797,760/759,081,993.44 - Step 6: Final answer
x = 391,595,137.90
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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.