Finding the Fourth Proportional to 21,405,331,236.42, 29,532,692,875.68 and 12,369,797,594.37
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Solution
The fourth proportional to 21,405,331,236.42, 29,532,692,875.68 and 12,369,797,594.37 is: 17,066,469,528.27
Step by Step Solution
- Step 1: Write the proportion equation
21,405,331,236.42 : 29,532,692,875.68 = 12,369,797,594.37 : x - Step 2: Convert to fraction form
21,405,331,236.42/29,532,692,875.68 = 12,369,797,594.37/x - Step 3: Cross multiply
21,405,331,236.42x = 29,532,692,875.68 × 12,369,797,594.37 - Step 4: Simplify right side
21,405,331,236.42x = 365,313,433,288,854,536,192 - Step 5: Solve for x
x = 365,313,433,288,854,536,192/21,405,331,236.42 - Step 6: Final answer
x = 17,066,469,528.27
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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.