Finding the Fourth Proportional to 1,236,197,394,715.20, 1,854,296,092,072.80 and 899,231,489,102.40
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Solution
The fourth proportional to 1,236,197,394,715.20, 1,854,296,092,072.80 and 899,231,489,102.40 is: 1,348,847,233,653.60
Step by Step Solution
- Step 1: Write the proportion equation
1,236,197,394,715.20 : 1,854,296,092,072.80 = 899,231,489,102.40 : x - Step 2: Convert to fraction form
1,236,197,394,715.20/1,854,296,092,072.80 = 899,231,489,102.40/x - Step 3: Cross multiply
1,236,197,394,715.20x = 1,854,296,092,072.80 × 899,231,489,102.40 - Step 4: Simplify right side
1,236,197,394,715.20x = 1,667,441,436,111,384,990,449,664 - Step 5: Solve for x
x = 1,667,441,436,111,384,990,449,664/1,236,197,394,715.20 - Step 6: Final answer
x = 1,348,847,233,653.60
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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.