Finding the Fourth Proportional to 21,192,261.92, 29,245,946.64 and 15,008,372
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Solution
The fourth proportional to 21,192,261.92, 29,245,946.64 and 15,008,372 is: 20,711,996.12
Step by Step Solution
- Step 1: Write the proportion equation
21,192,261.92 : 29,245,946.64 = 15,008,372 : x - Step 2: Convert to fraction form
21,192,261.92/29,245,946.64 = 15,008,372/x - Step 3: Cross multiply
21,192,261.92x = 29,245,946.64 × 15,008,372 - Step 4: Simplify right side
21,192,261.92x = 438,934,046,665,270.06 - Step 5: Solve for x
x = 438,934,046,665,270.06/21,192,261.92 - Step 6: Final answer
x = 20,711,996.12
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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.