Finding the Fourth Proportional to 640,935,201.33, 961,268,279.22 and 180,765,753.84
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Solution
The fourth proportional to 640,935,201.33, 961,268,279.22 and 180,765,753.84 is: 271,110,690.71
Step by Step Solution
- Step 1: Write the proportion equation
640,935,201.33 : 961,268,279.22 = 180,765,753.84 : x - Step 2: Convert to fraction form
640,935,201.33/961,268,279.22 = 180,765,753.84/x - Step 3: Cross multiply
640,935,201.33x = 961,268,279.22 × 180,765,753.84 - Step 4: Simplify right side
640,935,201.33x = 173,764,385,135,682,912 - Step 5: Solve for x
x = 173,764,385,135,682,912/640,935,201.33 - Step 6: Final answer
x = 271,110,690.71
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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.