Finding the Fourth Proportional to 1,236,197,393,811.20, 1,854,296,090,716.80 and 899,231,488,198.40
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Solution
The fourth proportional to 1,236,197,393,811.20, 1,854,296,090,716.80 and 899,231,488,198.40 is: 1,348,847,232,297.60
Step by Step Solution
- Step 1: Write the proportion equation
1,236,197,393,811.20 : 1,854,296,090,716.80 = 899,231,488,198.40 : x - Step 2: Convert to fraction form
1,236,197,393,811.20/1,854,296,090,716.80 = 899,231,488,198.40/x - Step 3: Cross multiply
1,236,197,393,811.20x = 1,854,296,090,716.80 × 899,231,488,198.40 - Step 4: Simplify right side
1,236,197,393,811.20x = 1,667,441,433,215,743,540,854,784 - Step 5: Solve for x
x = 1,667,441,433,215,743,540,854,784/1,236,197,393,811.20 - Step 6: Final answer
x = 1,348,847,232,297.60
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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.