Finding the Fourth Proportional to 89,944,919.48, 124,122,959.34 and 48,690,906.68
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Solution
The fourth proportional to 89,944,919.48, 124,122,959.34 and 48,690,906.68 is: 67,192,893.88
Step by Step Solution
- Step 1: Write the proportion equation
89,944,919.48 : 124,122,959.34 = 48,690,906.68 : x - Step 2: Convert to fraction form
89,944,919.48/124,122,959.34 = 48,690,906.68/x - Step 3: Cross multiply
89,944,919.48x = 124,122,959.34 × 48,690,906.68 - Step 4: Simplify right side
89,944,919.48x = 6,043,659,430,069,375 - Step 5: Solve for x
x = 6,043,659,430,069,375/89,944,919.48 - Step 6: Final answer
x = 67,192,893.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.