Finding the Fourth Proportional to 664,255,216.44, 916,672,163.68 and 358,728,218.28
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Solution
The fourth proportional to 664,255,216.44, 916,672,163.68 and 358,728,218.28 is: 495,044,922.32
Step by Step Solution
- Step 1: Write the proportion equation
664,255,216.44 : 916,672,163.68 = 358,728,218.28 : x - Step 2: Convert to fraction form
664,255,216.44/916,672,163.68 = 358,728,218.28/x - Step 3: Cross multiply
664,255,216.44x = 916,672,163.68 × 358,728,218.28 - Step 4: Simplify right side
664,255,216.44x = 328,836,172,023,798,912 - Step 5: Solve for x
x = 328,836,172,023,798,912/664,255,216.44 - Step 6: Final answer
x = 495,044,922.32
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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.