Finding the Fourth Proportional to 99,805,786.86, 138,436,615.68 and 97,151,206.26
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Solution
The fourth proportional to 99,805,786.86, 138,436,615.68 and 97,151,206.26 is: 134,754,553.09
Step by Step Solution
- Step 1: Write the proportion equation
99,805,786.86 : 138,436,615.68 = 97,151,206.26 : x - Step 2: Convert to fraction form
99,805,786.86/138,436,615.68 = 97,151,206.26/x - Step 3: Cross multiply
99,805,786.86x = 138,436,615.68 × 97,151,206.26 - Step 4: Simplify right side
99,805,786.86x = 13,449,284,203,864,032 - Step 5: Solve for x
x = 13,449,284,203,864,032/99,805,786.86 - Step 6: Final answer
x = 134,754,553.09
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.